User guide
APPENDIX “B” - SPECIFICATIONS & DIMENSIONS
1. DISPLAY: 6-digit 0.56" (14.2 mm) High LED display.
2. POWER REQUIREMENTS:
AC Power: Switch Selectable 115/230 VAC , ±10%, 50/60 Hz, 20 VA
DC Power:11to14VDC@0.7ampmaximum
3. SENSOR POWER: +12 VDC (±25%) @ 100 mA.
4. MEMORY: Non-volatile E
2
PROM memory retains all programming
information, count values, and Counter Load Values when power is
removed or interrupted.
Power Cycles (ON/OFF): 100,000 minimum
Data Retention: 10 yrs. minimum
5. INPUTS A AND B: Switch selectable to accept count pulses from a variety
of sources including switch contacts, outputs from CMOS or TTL circuits,
and all standard RLC sensors.
Current Sourcing: Unit provides pull-down resistor for sensor with
current sourcing outputs. (Max. input voltage = 28 VDC @ 7 mA.)
Current Sinking: Unit provides pull-up resistor for sensors with current
sinking outputs. (Max. sensor current = 1.6 mA.)
Debounce: Damping capacitor provided for switch contact debounce. Limits
count speed to 100 Hz maximumand input pulse widths to 5 msec. minimum.
Lo Bias: Input trigger levels V
IL
=1.5V,V
IH
=3.75V
Hi Bias: Input trigger levels V
IL
=5.5V,V
IH
=7.5V
Note: Bias levels given are ±10% @ 12 VDC. They vary proportionally
with sensor supply voltage at “DC OUT” terminal.
6. MAGNETIC PICKUP INPUT:
Sensitivity: 150 mV peak (typical @ 12 VDC)
Hysteresis: 100 mV
Input impedance: 26.5 KW @60Hz
Maximum Input Voltage: ±50 Vp
7. MAXIMUM COUNT RATES:
MODE X1 X2 X4
Uni or Bi-directional 10 KHz 6.5 KHz
Anti-Coincidence 9 KHz 5 KHz
Quadrature 4.25 KHz 4.25 KHz 3 KHz
8. CONTROL INPUTS:
Reset - Active low (V
IL
= 1.5 V max.) internally pulled up to +12 VDC
(I
SNK
= 3 mA) activation and deactivation response time = 10 msec.
Program Disable -Activelow(V
IL
= 1.5 V max.) internally pulled up to
+5 VDC (I
SNK
=1mA).
Print Request - (GEM331xx only) Active low, (V
IL
= 1.5V max.),
internally pulled up to +5 VDC (I
SNK
=1mA).
-34-
DIMENSIONS In Inches (mm)
Note: Mounted units require a clearance of 6.8" (W) behind the panel.










