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Model 420XL - Specifications

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  • Accommodates up to 5000 V Cable Voltage
  • Extended Temperature Range
  • Light Weight
  • Small Size
  • Encapsulated Shock Resistance
  • Metal Encased
  • Isolated Two-Wire Transmitters
  • Fast, Reliable Response
  • Low Cost Industrial Monitor
  • Current Overload Protection
  • Never Requires Calibration
  • Complete Electrical Isolation
  • Single Supply Voltage
  • Supply Reversal Protection

STANDARD CURRENT RANGES:
A.C. Amps, RMS
0-300, 0-400, 0-500, 0-600

PRICE: $475 (Standard Range)
$500 (Non-Standard Range)

MAX WEIGHT: 18 OZ.

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PERFORMANCE SPECIFICATION
With Optimum Load Resistance
Accuracy 0.2% (Standard)
Repeatability0.1% Full Scale
Response Time150 Milliseconds Maximum
Temperature Range-25 deg. C to 85 deg. C
Temperature Coefficient0.04% F.S./ deg. C
Conductor Cable Voltage5000 Volts (Insulated Cable)
Supply Voltage5 to 40 V.D.C.
Signal Out4 to 20 mA
Frequency Nominal 50 / 60 Hz
CONNECTION SPECIFICATION
Conductor Cable SizeUp To 2.00" diameter
IsolationInput/Output/Case
Insulation Resistance
(Between Output and Case)
100 Meg. Ohm Min.
@500 V.D.C.

CHARACTERISTIC CURVE
OPTIMUM LOAD RESISTANCE
The optimum load resistance is actually the sum of the line resistance, receiver resistances and added external load resistance. However, in many applications, the line resistance and receiver resistances are negligible in comparison to the added external load resistance. The following equation may apply:
RL = ( VS - 5 ) X 40 Where:  RL = Load Resistance in Ohms.
VS = Supply Voltage in Volts D.C.
Manufacturer maintains right to change specifications without notice; prices as of January 1, 2008.

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