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LD - 16 Pages

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1 AIR PRESSURE STABILIZATION VENT (57.15) 2.25 X Z Y GENERAL DESCRIPTION The Large Display is a versatile display that can be configured as a single or dual counter with rate indication, scaling, serial communications and a dual relay output. There are also basic models that have a single counter with direction control only (no scaling or relay output). The 4 & 6 digit displays are available in either 2.25" or 4" high red LED digits with adjustable display intensities. The 2.25" high models are readable up to 130 feet. The 4" high models are readable up to 180 feet. All versions are constructed of a NEMA 4X/IP65 enclosure in light weight aluminum. The 6-digit programmable models have two signal inputs and a choice of eight different count modes. These include bi-directional, quadrature and anticoincidence counting, as well as a dual counter mode. When programmed as a dual counter, each counter has separate scaling and decimal point selection. Rate indication is available on the programmable models only. The rate indicator has separate scaling and decimal point selection, along with programmable display update times. The meter display can be toggled either manually or automatically between the count and rate values. The programmable models also come with a dual Form C relay output and RS232 or RS485 serial communications. The outputs can activate based on either counter or rate setpoint values. An internal batch counter can be used to count setpoint output activations. SAFETY SUMMARY All safety regulations, local codes and instructions that appear in this and corresponding literature, or on equipment, must be observed to ensure personal safety and to prevent damage to either the instrument or equipment connected to it. If equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. Do not use this unit to directly command motors, valves, or other actuators not equipped with safeguards. To do so can be potentially harmful to persons or equipment in the event of a fault to the unit. The protective conductor terminal is bonded to conductive parts of the equipment for safety purposes and must be connected to an external protective earthing system. SPECIFICATIONS 1. DISPLAY: 2.25" (57 mm) or 4" (101 mm) intensity adjustable Red LED 2. POWER REQUIREMENTS: AC POWER: 50 to 250 VAC 50/60 Hz, 26 VA DC POWER: 21.6 to 250 VDC, 11 W DC OUT: +24 VDC @ 100 mA if input voltage is greater than 50 VAC/VDC +24 VDC @ 50 mA if input voltage is less than 50 VDC Isolation: 2300 VRMS for 1 min. to all inputs and outputs 3. COUNT INPUT(S): Counter(s) have DIP switch selectable pull-up (7.8 KƒÇ) or pull-down resistors (3.9 KƒÇ) that determine active high or active low input logic. Counters are DIP switch selectable for high or low frequency (Damping capacitor provided for switch contact bounce. Limits input frequency to 50 Hz and input pulse widths to 10 msec min.) Input A Trigger levels: VIL = 1.25 V max; VIH = 2.75 V min; VMAX = 28 VDC Input B Trigger levels: VIL = 1.0 V max; VIH = 2.4 V min; VMAX = 28 VDC Overflow Indication: Display “ƒ¿ƒ¼ƒ¿ƒ¼” alternates with overflowed count value. LD200400, LD200600, LD400400, & LD400600: Count Rate: 25 KHz max. @ 50% duty cycle (no scaling) LD2006P0 & LD4006P0: Maximum Count Rates: 50% duty cycle, count mode dependent. With setpoints disabled: 25 KHz, all modes except Quadrature x4 (23 KHz). With setpoint(s) enabled: 20 KHz, all modes except Dual Counter (14 KHz), Quadrature x2 (13 KHz) and Quadrature x4 (12 KHz). 4. RATE INPUT: Models LD2006P0 & LD4006P0 only Display Range: 0 to 99999 Min Freq.: 0.01 Hz Max Freq.: See Count Input specification Accuracy: ±0.01% Rate Overflow Indication: Display “ƒâƒnƒ¿ƒ¼ƒ¿ƒ¼” ƒÜ 2.25" & 4" HIGH RED LED DIGITS ƒÜ AVAILABLE IN 4 OR 6 DIGIT VERSIONS ƒÜ SINGLE OR DUAL COUNTER with RATE INDICATOR * ƒÜ PROGRAMMABLE SCALING AND DECIMAL POINTS * ƒÜ BUILT-IN BATCH COUNTING CAPABILITY * ƒÜ PROGRAMMABLE USER INPUT * ƒÜ UNIVERSALLY POWERED ƒÜ DUAL 5 AMP FORM C RELAY * ƒÜ ALUMINUM NEMA 4X CASE CONSTRUCTION * Programmable models only MODEL LD - LARGE DISPLAY DIMENSIONS In inches (mm) Bulletin No. LD-H Drawing No. LP0607 Released 10/09 Tel +1 (717) 767-6511 Fax +1 (717) 764-0839 PART NUMBER X (Length) Z (Center) LD2004xx 12 (304.8) 4 (101.6) 8 (203.2) LD2006xx 16 (406.4) LD4004xx 20 (508) LD4006xx 26 (660.4) 22 (558.8) CAUTION: Risk of Danger. Read complete instructions prior to installation and operation of the unit. CAUTION: Risk of electric shock. 16 (406.4) 4 (101.6) 12 (304.3) Y (Height) 7.875 (200) 7.875 (200) C US LISTED UL R 51EB IND. CONT. EQ.

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2 ORDERING INFORMATION TYPE MODEL NO. DESCRIPTION PART NUMBER Basic (No front panel keys) LD 2.25" High 4-Digit Red LED Counter LD200400 2.25" High 6-Digit Red LED Counter LD200600 4" High 4-Digit Red LED Counter LD400400 4" High 6-Digit Red LED Counter LD400600 Programmable (With front panel keys) LD 2.25" High 6-Digit Red LED Count/Rate Indicator w/ dual Relay Output & RS232/RS485 Serial Communications LD2006P0 4" High 6-Digit Red LED Count/Rate Indicator w/ dual Relay Output & RS232/ RS485 Serial Communications LD4006P0 LD Plug Panel Meter Plug for LD models (NOT included in LD Product...

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3 3.0 WIRING THE METER 2.0 SETTING THE DIP SWITCHES SETTING THE 8 DIP SWITCHES To access the switches, remove the right side plate of the meter. A bank of eight switches is located inside the unit. Warning: Exposed line voltage exists on the circuit boards. Remove all power to the meter and load circuits before accessing inside of the meter. SWITCH 1 (Input A) LOGIC: Input A trigger levels VIL = 1.25 V max.; VIH = 2.75 V min.; VMAX = 28 VDC MAG: 200 mV peak input sensitivity; 100 mV hysteresis; maximum voltage: 40 V peak (28 Vrms); Must also have SRC switch ON. (Not recommended with...

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