DM4200

DM4200 MURATA | Alldatasheet

Document overview

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Technical content

(IDYANH EI DM-4200 42 Digit . . Differential LED DPM PRODUCT DATA AND with Data Outputs USER'S GUIDE

FEATURES

• Low Cost 4% Digit DPM with LED Display * Balanced Differential Inputs * Digit Serial BCD Outputs — Can Drive Remote Slave Display (DM-4102) * High Brightness .3” High LED Display os * 1000 Megohm CMOS Input with 5 pA Bias Currents * Autozeroing with Ratiometric Reference for Drift a Correction ee * +5 Vde Power — provides —5 Vdc at 15 mA Output to " Power User Circults oy ee ay ft DP * Low Profile Polycarbonate Case — 2.53’W x 3.34’D "r,t. =. ded x 0.94"H OATeEL w.4200

APPLICATIONS

« Ammeter — Accepts user-supplied shunts for + 20 nA 4 to + 2A Full Scale Ranges ae * Voltmeter — Accepts user-suppiled attenuators for Be . : + 2Vto +1kV Full Scale Ranges oe i GENERAL DESCRIPTION ‘ olla. The DM-4200!sa 4% digit DPM (Digital Panel Meter) withdifferential zeroed tominimizezerodritt. Thereference voltage Is brought outon inputs and an LED display. The meter accepts analog dc input volt- arear panel pin (Reference Out), where it can correct driftin external ages trom ~ 1.9999V to + 1.9999V, ratiometric bridge circuits. A dual slope A/D converter changes these inputs to a BCD digital Cirouit pads on the DM-4200's converter board will accept current code, Decoder drivers cause the input voltage to be displayed on .3” shunts and voltage dividers to extend the input range to + 1 kV full high LED numerals. The BCD-encoded numerals (digit serial) are scale on voltage, and + 20 uA to + 2A full scale on current measure- also output to a rear-panel connector where they may be used to ments. BCD outputs, multiplexed by digit, are available. The outputs drive a slave display, or become A/D inputs to a printer or micro are 1 TTL load, and can be used to drive a remote display. computer. Overscale and Underscale outputs can be used with external cir- The DM-4200is housed ina compact, low profile polycarbonatecase cuits to autorange the meter. A Run/Hold output can be tied low to only.94” high. The DM-4200 can be used in process control panels, stop the meter’s A/D conversions, and to continuously display the OEM products, and medical Instrumentation to provide a clear, un- last reading. A Busy/Done output goes low to indicate the end of an ambiguous display of d.c. voltages. A/D conversion. 3 CMOS input circuitry gives the DM-4200 very high input impedance A built-in de to de converter provides — 5V Out (at 15 mA max)to 5 (1000 Matypical, 100 M2 minimum), and avery low input biascurrent power user circuits. Power inputis + 5Vdc(+.25Vjregulatedat 200 i (6 pA typical, 50 pA maximum). The meter’s input amplifier is auto- mA typical and.250 mA max. g a MECHANICAL * 2.31 g DIMENSIONS -—8s— - me g goon eRe = H jn ae mm ) ne eee ena i=] i 7 g wy, 0969 = neMovagte or \\ ome Fy user's a’ Nie [rn g FRONT PANEL t : PANE, THICKNESS 2 a nar cay a T o i S in oa fT oan Al Sia! op 2 |}, af j ne 88 | 1 3%, 0.75 }-— 1of6

(typical at + 25°C, unless noted) ANALOG INPUT \\ True, balanced differential bipolar inputs Should be sampled after the Busy falling MOS compatibie: MOS drivers or open collec: | (Note: The user may close SGS if single-ended edge. Overscale is HI if the previous in- tor drivers pulled up to +5Vare preferred. Use | inputs are preferred.) put exceeds the A/D converter range of putlups on totem-pole drivers. 0 = “0” = LO Full Scale Input Range... see eeeeeeee = 19999 counts. = +08V Ammeter—Accepts User-supplied shunts for edge. Underscale is HI if the previous inp static discharge voltage spikes. Use ground | +20.A to +2A Full Scale Ranges dispiay #1800 counts or lass. Under- protection when wiring or handling uators for +2V to + 1KV Full Scale Ranges downranging gain selection controls for an 4 wire Binary Coded Decimal (BCD 1-2-4-8) per suto-ranging input section. 6 a digit, multiplexed. See timing diagram. Polar. lallon et extra copnorante intr ie BEM in tre Should be connected to Decimal Point Cam. gap 6 This would be used tor unsigned re- User” Or, optional ranges are available on special mon {B11) according ta the desired display Verse sensing (implied positive) applications | point selection with negative inputs. order in OEM quantities from DATEL, scaling. Note that decima Input Blas Current does not change the & 2V input range. POWER REQUIREMENTS 5 pA (typical); 50 pA (maximum) vieeduid be connected to 2 8V power in B18) External +5, #0.25 VDC reguiated required Adjustable to + 0.02% of reading, + 2 counts the display but keep the A/D converter cycling with display and polarity disabled). Logic bier RO (useto save power but eliminate turn-on drift Spikes must not exceed 50 mv. Power current 100 aV in last digit RunlHfeld in (Pin Ad) eee varies rapidly so that unregulated supplies Autozeroed + 1 count over Oto + 50°C tie HI for continuous sampling. Grounding added to the +5V power requirements.) += 50 ppm of Reading /°¢ typical to copy down a reading, = 100 ppm of Reading /°C maximum PHYSICAL-ENVIRONMENTAL

100 Megohms (minimum); 1000 megohms — INPUT/OUTPUT CONNECTIONS Outline Simen sone cit

inpuv Overvoltage Analog HI Input (Pin AZ) «2. se serves g Gis x BA x 23,8mm) £280 VDC, 175 VAMS continuous maximum, ATE eee io hages arg connected be: 25RD Wk OSH min (68,1 x BAG rnin} «fered to Analog Helin An exiee POWER COMMON or ANALOG RETURN from rough a front panel cutout secured by Internal, referred to Analag Return. An axter- both these inputs must be externally pro- brackets and two removable side case nal, user supplied reference is optional for ra- vided. External circuits must constrain these screws. Panel thickness up to 0.62" (15,9 mm) tiometric operation. inputs to be within the common mode voltage Welght «=.= -.e es sce esesaecsesae Return "ihfs analog common bias return must be ex: Dual 15-pin, 0.100” centers, Datel-Intersil #58- Both inputs must remain within + 4V of Power fhe instrument ic calibrated when a +1.0Vde Operating Temperature Range .. 2. essere eres Common drop exists between ref. IN/OUT (Pin B4) and Oto +50" DISPLAY input fo Pin B4 which Is biased against Pin B3 = 25°C to +85°C may be used by opening solder gap 2. Ra Number of Digits --..- 0. 1ss sees ieee eta: tiometric drift-correcting action may then be digit (4% digits) +0.1 Vde to + 2.0 Vdc (see diagram). ORDERING GUIDE Red, light-emitting diode (LED), self- Ground this pin to display "18888". Otherwise MODEL Display Height polenvethis pingpen.. NUMBER DESCRIPTION sgictessesereeceecnerserreess Polarity Output (Pin A3) oe. ..e ee eeee eee eeeee " 0.3 inches (7,6 mm) This output should be’ sampled at the Busy Cen eet ogee Meter Inputs exceading the full scale range cause indicates a negative input, Power Adapter the display to blink. Polarity display may be disabled by opening §8-2073083 Qual 15-pin, 0.100* ctrs A minus sign (—) is automatically displayed reverse sensing [implied positive) applica: tor. (Not Included. for negative voltage inputs, and may also be tions with negative inputs. Please order with DPM.) Approximately 3 conversions per second sequentially turn on the five displays with Decimal Points -. oe. e eee eee multiplexed BCD data at approximately 150 Right-of-digit selectable decimat points are complete scans per second (1.3 milliseconds Ingluded for scale multiptiers. per digit). Non-addressed dispiays (Digit Drive Busy/Bone OUT (Pin AB) soa oe oc LO) remain dark. Persistence of vision creates his output is HI during A/D conversion. The a non-blinking image in the eye. Digit Drives failing edge indicates that a new valid data may be used for companion remote slave dis- Strobe output will appear in 1.3 milliseconds. plays. equipment to prevent changing the Input volt; Up to 15 mA of —5 VDC power may be taken to age during conversion. See the timing dia- power external user-supplied clrouits such as gram. signat conditioners, connected by SG3, {sup- Consists of 6 and only 5 negative pulses per cuit protected. The —5V output is loosely AID conversion of approximately 6.7 micro- fegulated-and may require an external user- seconds width and approximately 1.3 milli- supplied filter for DC/DC converter ripple de- Seconds apart issued atter an A/D conver- ‘ending on the application. sion. They Indicate that valid multipiexed +50 Powet Out (Pin BIS) noose ese ceeceeeeeee data is available on the BCD data output Is connected by solder gap 4 (supplied lines, starting with the Most Significant Digit closed) for an additional + £V power pin part of the BCD data and that the BCD, when MOS compaiibie; will drive 1 TTLILS load taken as 4 multiplexed bits only will be un- Os "0" =LOs +0.4V signed. A fifth line (Polarity Out, Pin A3}, must +2.4V <1" = His + 5.0V be polled to determine the sign. Refer to the timing diagram. 20f6

DM.4200 IDVANNEIL TYPICAL DECIMAL POINT CIRCUIT pec. er, NON p \\ v0 opener} SIMPLIFIED ee areuncoe ON | BLOCK | _ bisRtay OES 1) DEC. Pr. COMMON DIAGRAM roSpeuae (22) DEC. PT. 1.2345 i ENABLE (+5V) | (an) oc er 68 ; | (65) ec. er anes ! V 7 ty | | i 10 ! roo CO Srburs L FISIEFASL =I } ssvrowen our (b15} soe Fy Te] Thebede ded | ssvrowenn Ges aR i amocon @) ! cr Soran 1 $08 : I Oa | + sc2 ' ' | \\ ! | ' ; | (68) 28 wooo So Rvs |, euswDONE our (As) ae l (66) a1 3 overscave our @—— — Ad Oe 4 STmORE out (Aa) . (ari) 03 P Baives | $ f Au. GG RETURN Mu BE EXTERNALLY Ss : ' GONNECTED TO POWER COMMON (a) 00 5 | OPEN So: FORINTERWAL ATTENUATOR USE IPS povariry |. GpEN S63 Fon ExtenNAL REFERENCE USE. fas) S488 L oneness TYPICAL INPUT/OUTPUT CONNECTIONS WIRING SIDE [pie | | COMPONENT SIDE (BOTTOM) {| AB | Top) DECIMAL POINT 12.345 1 1 DECIMAL POINT 1234.5, DECIMAL POINT 1.2345 2 | 2 | DECIMAL POINT 123.45 POLARITY OUT’ 3 3 ANALOG RETURN———— RUNIHOLD IN 4 4 REF IN/OUT (SG2)' BUSY/DONE OUT 5 5 IN STROBE OUT 6 | 6 Bt (LSB) 8CD ANALOG HI IN 7] 7 | B2 OUTPUTS? SIGNAL ANALOG LOIN a] 3s | Ba INPUT D1 (LSD) 9]o9 B8 {MSB) DIGIT D2 10 10 DISPLAY ENABLE IN DRIVE D3 41] 11 | DECIMAL POINT COMMON OUTPUTS* Da 12 | 12 | UNDERSCALE OUT ‘D5 (MSD) 13 13 OVERSCALE OUT POWER COMMON 14/14 | +5V POWERIN +5VDC POWER ~5V POWER OUT (S63) 16 | 15 | +5v POWER OUT (Saer RETURN This connector rear view shows the DPM tilted on its side. NOTES: 1 SG2 is supplied closed for REF OUT; Open SG-2 for REF IN. 2 Digit drive and BCD outputs are used in conjunction with the DM-4102 slave display. 3 Pins A14 and B3 must be externally connected together. 3ot6 a

ba.4200 ee OAEL INTERNAL MODIFICATIONS INTERNAL COMPONENT LOCATIONS Attenuator and shunt resistor pads are supplied on the bottom DPM printed circuit board to allow the user to program higher current or voltage ranges. DATEL will also modify these Ss ——- v ~ meters on special order in OEM quantities only. ¢ J 3) & ojo ~~ wl or, sce | CAUTION: Such modification should only be attempted by 2 = | H . ra a ' users skilled at miniature electronic assembly. Improper sol- 2 | timc, [olf = fa) dering or fabrication procedures can damage the DPM and . & Ver = ea : void the product warranty. | e4@e Oy Les oof | 000: soi Input attenuator resistors and shunt (R1, R2), solder gaps and ~lafeale eo 17 Se LO eH ar, Re jumpers are located by removing the DPM circuit board from = 9 et INPUT { its housing. ses ( eosegsovee 51s.) SHUNT | For the Low Proflle miniature models, remove the rear con- BI /¢ a TB, RESISTORS nector and remove the rear cover by inserting a small screw- i Fon ——, (a ° driver between the cover and the case. Bow the cover back- (==> > 1S ward to release the 2 catches in the side of the case. Slide the | bib doccaetea eS circuit board out backwards. After modification, be sure the | scp eeeecerran RES a om front filter Is in place, then slide the bottom board between = SH (pS G3 the guide rails molded into the case. The rear cover will need rar aay | \\ ome “ ers to be compressed slightly to fit back into the slots in the case. 1h ; 4 ‘ : aye Solder Gap 5 (which single-ended-grounds Analog LO In) is lo- § 3 i Hida; cated on the bottom (non-component) side of the lower board, q i c 5 in paratlel with R1.R1 and R2 are found on the top of the lower board by tracing the Analog Hi Input pin etch. PIN BY! =~ RATIOMETRIC OPERATION | Ratiometric operation is used with bridge-type differential inputs to put. That is, with a smaller reference input, larger values are | | reduce system errors when two or more reference voltages are oth- _—_displayed. By using a common voltage source to excite the bridge | erwise used. By using a single reference to operate the entire mea- and DPM reference, the DPM will automatically compensate for | surement citcult, accuracy depends only on the tracking ratio of the _ small bridge output variations. Since the bridge excitation is usuelly resistors rather than the magnitude of the reference voltage. larger than + 1.0 Vdc used to reference the OPM, a precision poton | In the circuit shown here, the DPM's Input Is the output of asensor _the voltage source supplies the OPM's reference as a proportion of bridge (example: strain gauge or load cell), The bridge requires a__the voltage source. Over a limited range(+0.1to + 2.0 Vdo), this pot source of excitation voltage which varies with the type of applica- May be used as the DPM's full scale adjustment. Since the DPM’s tlon. The DPM also requires a reference voltage. Both bridge excita. _‘internal reference is not used in this application, the DPM's gain pot tlon and the DPM reference input must be held stable to avoid errors. —*Will have no effect. The DPM's Internal reference may be used for the Bridge output is directly proportional to the bridge excitation. How. _—entire circult in place of the external voltage source, however an ex- ever, the DPM display Is inversely proportional to the reference in. _ ternal user-supplied amplifier may be required to get adequate | bridge excitation | EXTERNAL USER'S CIRCUITS p----——~toPm oa LN | ! | ANALOG HIIN. + - | } [Vy | ANALOG LO IN USE LOW DRIFT POT | | ! 2M (NOT USED) | | + LO GAIN \\ DISPLAY =(ANALOG HIIN — ANALOG LO IN)x 10,000 COUNTS = \\ ~~ REFIN ~ ANALOG RTN TRANSDUCER | Vexc OR SENSOR | SET on Vin=2 Vgep AT FULL SCALE OF 19999 COUNTS ——— BRIOGE + ‘ | EXTERNAL 300mVv REFERENCE mv = Vage § 2V Ra joNoe | USE. HIGHER\\ /INTEGRATOR Ra HIGAIN | NOMINAL t (Noe } (Srrunanion) | ANALOG RTN BRIDGE OUTPUT =V,y =(—R3_ __R4_) xy, EXTERNAL REFERENCE | NY \\RI-R3 wna) Exe | BRIDGE SCALING i | SOURCE (OPM 18 CALIBR | IMPORTANT: ANALOG RTN (DPM I t 7 (RHR: CALISRATED ; MUST BE EXTERNALLY CONNECTED ; POWER COMMON Loa ERROR VARIATIONS IN BRIDGE DUE TO Vexc CHANGES ARE AUTOMATICALLY COMPENSATED BY USING INVERSELY PROPORTIONAL, DPM GAIN CHANGES THROUGH REF IN. 40f6

DATA OUTPUT TIMING DIAGRAM To reduce the amount of wiring required to implement a slave dis- Digits are scanned in this manner in the DM-4101L, 4200, 4105 ap- play, 4-wire BCD data Is multiplexed using 5 digit drive outputs proximately 150 times per second. The BCD data is updated with which direct the BCD data to the proper digit. The DPM displays every A/D conversion which is approximately 3 times per second. rely on the persistence of vision of the human eye to store an im- Only 5 strobe pulses are issued with each new conversion. These age of the displayed digit. This multiplexing technique is com- DPM's may be connected to popular microprocessors by using pe- monly used with DPM's and DVM's. Each digit drive has the effect ripheral interface circuits and a suitable data transfer program. of sequentially turning on its respective digit when the drive signal The strobe may be used to generate an interrupt which latches the Is Hi. The digit is blanked when the drive is low. DPM's output data, then transfers It to memory. 1 1 DATA OUTPUT TIMING DIAGRAM. conversion —! | | i 1 1 7 fi i - a BAROK ams —e! =a | 7 ‘ i 1 1 \\ i \\ 1 i T

1 T 1 7 I i l

| 1 1 1 1 ' v | i 1 f DIG. a DRIVE . ! ! 1 L | i L V j V T ] V t i ' ] 1 | 1 i 1 1 1 i t | ove. 2 DRIVE 1

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1 i 1 i i | 1 ‘ i 1 ! : I i | 1 ! T | ‘ oie. Dave i 1 I | I i | 1 ‘ i H 7 r 1 T i T 7 {so r L 1 { ‘ fi 1 | 1 1 1 I 4 i ! Busy i . L ! _ 1 | ' i 7 ‘i 7 7 : STROBE OUT : . y L \\ APPROX. 6745 —| — ' i ' ; , - L J J | | ys stmosts onty Pea conversion I i ' T 1 H | ' 1 I { ovenscaue XXXXXXM [1 ' ! | 1 I QUTPUTS ARE 1 TTL LOADS MAX ' 1 | i | STROBE MAY BE USED TO INDICATE 1 l t i : | | i | ' VALID BCD DATA. unoerscate XX] | i ' \\ j ' ' ' 1 | I 1 f ‘TIMING IS TYPICAL AND I§ NOT TO SCALE wo YY YYNYyY 1 Bien XAXXXXKXMK we XX 2X 2 XK eo X we K+) i OVERSCALE/UNDERSCALE AUTORANGING CONTROLS { DATEL’S new 4¥2 digit differential DPM’s include Underscale and Suggested operating modes such as voltage attenuation or current Overscale outputs. Overscale trips when the input exceeds 19999 shunt measurement may include components which are internally counts. Underscale tips on 1800 counts. if an external circuit instailed by the user. Since the selection of these components and consisting of relays or FET switches can change an external decade the manner of installation is beyond DATEL’S control, the warranty programmable gain amplifier, the Underscale control should be used extends only to products which operate as standard, unmodified to decrement a PGA counter which downranges to higher gain. units, This means that DATEL will honor warranties on products Overscale should increment the PGA counter to cause an uprange to which have been restored to their original condition (that is, added or lower gain or less attenuation. Underscale and Overscale are modified components will have been removed by the customer positive-true pulses. They both should be sampled after the Busy before returning the product for repair). Further, the customer must falling edge. insure that the product was not damaged by the addition and removal The decimal points can also be programmed by the autoranging Saronnens Such damage would void the original product circuits to indicate what the range is. f ' As a practical matter, users have several alternatives to insure WARRANTY INFORMATION warranty protection. Although this product is 100% functionally tested

18 Digi and inspected, a thorough incoming inspection by the customer

NOTE. DATEL S Cicgital Pane! Meters are warranted to be free from should be considered before modification, Those original compo- jefects in materials and workmanship when operated as described nents of the DPM (displ o tr g Ww s plays, IC’s, etc) will be warranted if defective in this brochure for a period of one year from the date of shipment. and, in DATEL'S opinion, not subject to catastrophic user damage). | This information is believed to be sufficient for the user to determine ‘ . " . i and be responsible for the selection, application and specification of Users may also partially remove components (one lead of a shunt this product for the user's intended usage. This warranty is expressed resistor, for example) to restore the DPM to original condition while in lieu of all other warranties, expressed or implied, including the expediting return to the user’s modified condition, once DATEL has implied warranty of fitness for a particular purpose and of all other repaired the product. Obligations or liabilities on the seller's part The warranty neither . . . . assumes nor authorizes any other person to assume for the seller any The intent of this procedure is to allow rapid diagnosis and repair on other liabilities in connection with the sale of the said articles. DATEL's test fixtures. Because of the variety of possible DPM modifications, OATEL test fixtures can only test unmodified products. S0f6

DM.4200 ANTE OM-4102 SLAVE DISPLAY WIRING ET, aT SIG. { +5 VDC { 12 WIRES CS nS POWER | DM-4200 —<— UPTO25FEET = DM-4102 SLAVE DISPLAY A companion low-cost slave display, Model DM-4102 is of- away. A simple 12-wire interface, suitable for ribbon cable fered by DATEL for use with the DM-4200 Master DPM. The connects as shown below. The Diagram shows both the DM- DM-4102 can be used as a remote data repeater up to 25 feet 4200 and DM-4102 connectors vertically to illustrate their as- { sociated pin-out connections. j TYPICAL SLAVE CONNECTION DIAGRAM 7 4 (BOTTOM) (TOP) {1 (BOTTOM) (TOP, AB te AB POLARITY OUT (373) ANALOG RETURN: ty POSINEG POLARITY IN [73] 3) RUN/HOLD IN 4.4] REF IN/OUT hi [a4] BUSY/DONE OUT [5.5| DISPLAY TEST 18888 I} [5°5] DISPLAY TEST 18888 | ‘STROBE OUT e[6! BOC 1 OUT rt [e[6| Bcd 1 IN (LSB) | SIG. IN ANALOG HI IN BCD 20UT ty BCD 2 IN ANALOG LO IN 88] BCD 40UT i! Ps[@| BCD4IN | DIG. 1 ORIVE(LSD) [99] BCD BOUT | | -~DIG.1DRIVE(LSD)IN [9[9] BCDB IN DIG. 2 ORIVE FORO) DISPLAY ENABLE IN 4 | [—01G.2DRIVEIN TORO! DISPLAY ENABLE IN DIG. 4 DRIVE 42/82} UNDERSCALE OUT 1 DIG. 4 DRIVE IN 422 H DIG.5 DRIVE (MSO) [43431 OVERSCALE OUT | 1 L-0i6's oRIVE (Msb) IN $3113 [ POWER COMMON 4] +5V POWER IN | | | POWER COMMON +5V POWER IN | —5V POWER OUT +5V POWER OUT. ta [15H5| +SV POWER OUT (REAR CONNECTOR VIEW) 5 y 3 ’ 12-conductor cable up to 25 feet (18m) - 4 DM-4200 MASTER DPM 8Vde power DM-4102 SLAVE DISPLAY Undesignated pins are no connection PANEL INSTALLATION INSTRUCTIONS The low profile caze is retained in a front panel cutout by siiging the OPH mousing In through the —s cutout opening and securing tha housing trom Users front pane! cuncu't BOARO ACCESS Good ag followa, — acnets and screws. Pro with cut out > I access to the internal circult board is required, 1, After determining the correct Rositton, forma 4 bow the rear cover plate backward by prying up Cutout in the mounting panel. Refer to tne cut- Inthe canter with a emall screwdriver or knife Sut drawing for proper dimensions. i Blade, fo releane the two catches in the side of 2. Ingtall the panel meter ‘rom the front (display) . ‘the case. When reinstalling the circult Doard, Side of the mounting panel as shown. a ( firat-be sure the front filter fs flush againat the 3. There aro two pairs of siots in the side of the me. — inside of the housing. The circult board engages case to receive the L-brackets and retaining Pars .; @ pair of guide tracks which are molded Inside screws. Most applications will use the front Fe. the case. Bair of slots, For panels jhicker thar about . When reinstalling the rear cover plate, be eure 6.26 inches (6 mm), uae the rear siot pal [SS Brackets slots the trim pot access hole is fo the lower ett whan 4. Athn plate molding may cover the selected SS @ pairs) facing the rear. Compress the covar plate slightly slots. This can be broken through with the L $0 that It snaps Into the two retaining slot Brackets in the next step or can be removed us- - Catches at the rear sides. ing. Ba stalled In the upper pair of board guide tracks, 5, Asbemble the supplied 4-40 screws into Ne Low profile | “U" flange the upper connector stot (if used) in the roar brackets as shown, turning the screw until seating brackets cover plate may be opened by using a knife fram several threads are engaged. panel meter i Inalde the cover. 6. Using ire screw as aleve, push the snort sido (1 pair) and screws of the bracket into the siot ag shown and 1 Insert brackets sevew ie parallel fo tha case side and the C and rotate backwards Bracket is fully captured in the case. Ya turns 7, Lightly tighten the screws against the front Panel Printer in USA Copyngnt ® 1987 Oat. A cights reserved +1 CABOT BOULEVARD, MANSFIELD, MA 02048/TEL (617)339-8941/TWX 710-346-1959/T LX 951340/FAX (617) 339-6356 8-0080 \\| ‘@ Santa Ana. CA (714) B35-2751 @ Sunnyvale, CA (408) 733-2424 @ Los Angeles, CA(213) 933-7256 © OVEASEAS: DATEL (UNITED KINGDOM) TEL. BASINGSTOKE (258) 469085 © DATEL (FRANCE} TEL. 4602-6711 © DATEL (GERMANY) TEL. (89) 530741 @ DATEL JAPAN) TOKYO TEL. (2) 779-1031 * DATEL (JAPAN) OSAKA TEL. (6) 384-2026 ‘SPECIFICATIONS SUBJECT TO CHANGE WITHOUTNOTICE 467 6ofé