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Dual Valve Position Indicator Maintenance
1 18 I SPECIFICATIONS
INPUTS
84608-01
Signal Inputs:
T
w
o
channels A.C. LVDT or Pot input. (Both channels must use the same transducer type.)
SIGNAL CONDITIONING
Monitor Range: F u l l scale meter range always set at 0 to 100% Open.
Accuracy:
t
0.33% of full scale error typical at 77°F (25°C).
t 1% of full scale error maximum at 77°F (25°C).
DISPLAYS
Meter:
L
C
D
bargraph, dual scale with outside scales marked as "0 to 100% Open" full scale range.
Bargraph resolution is 1.6% of full scale range.
LEDs:
CONTROLS
Internal:
Green LEDs annunciate transducer OK condition.
Switches on circuit board for Channel Bypass. Shorting Terminals on the circuit board for Self
Test Invoke, Error Code Reads and Error Code Clear.
External: E x t e r n a l remote controls: Reset and Inhibit.
OUTPUT
Recorder:
O
u
t
p
u
t
proportional to full scale monitor range and protected against continuous short circuit
to ground:
+4 mA to +20 mA, +12 Vdc compliance.
+1 Vdc to + 5 Vdc, 100 Ohm output impedance.
0 Vdc to -10 Vdc, 100 Ohm output impedance.
Transducer Drive Signal: 1 . 5 Vrms @ 2.5 kHz for A.C. LVDT, -5.4Vdc for Pot. Output is short circuit protected.
OK: R e l a y drives system OK Relay.
ENVIRONMENTAL
Temperature:
Ope32°F to +149°F (0°C to +65°C).
Storage -40°F to +185°F (-40°C to +85°C).
Humidity:
0
to 95%, noncondensing.
3 1
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