| Model 420s - 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
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- 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
0-5
PRICE: $150.00
MAX WEIGHT: 3/4 OZ.
No Mounting
Required!
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PERFORMANCE
SPECIFICATION
With Optimum Load
Resistance |
 |
|
Accuracy |
1/4 of 1%
of reading |
|
| Repeatability |
0.25% Full Scale |
|
| Response Time |
150 Milliseconds
Maximum |
|
| Temperature Range |
-25 deg. C to 85 deg.
C |
|
| Temperature Coefficient |
0.04% F.S./ deg. C |
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| Conductor Cable Voltage |
5000 Volts
(Insulated Cable) |
|
| Supply Voltage |
5 to 40 V.D.C. |
|
| Signal Out |
4 to 20 mA |
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| Frequency Nominal |
50 / 60
Hz | |
| CONNECTION
SPECIFICATION |
|
| Conductor Cable Size |
Up To 0.25"dia |
|
| Wire Range - Top Terminal |
14 to 22 AWG |
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| Dielectric Withstand |
16 KV / mm |
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CHARACTERISTIC CURVE
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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.
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| Manufacturer maintains
right to change specifications without notice; prices as of January
1, 2001. |
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