Model 707
Loop Calibrator |
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The fast,
one-handed tool for loop checks. Just click to calibrate.
This
feature-rich solution combines the best features push-button and knob-base
loop calibrator and offers:
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Features
- Large display and
simple, quick-click interface for easy one-handed operation.
- Simultaneous mA and %
readout for quick, easy interpretation of readings.
- mA accuracy of
0.015%, superior to other loop calibrators in this price range.
- 1 µA resolution for
mA source, simulate and measure.
- Push button 25% steps
for fast, easy linearity checks.
- 0-100% “span check”
for fast confirmation of zero and span.
- Selectable slow ramp,
fast ramp, and step ramp to provide smooth outputs for valve slewing and
loop functional tests.
- 24 volt internal loop
supply, so you can power and read a transmitter at the same time without
carrying a DMM.
- Measures V dc to 28
V.
- Single 9V battery
that is easily changed without braking calibration seal.
- 0 - 20 mA or 4 - 20
mA default start up modes.
- Innovative output
adjustment dial with 1 µA and 100 resolution.
-
HART ™ mode connects
250 W resistor in series with 24 V loop for compatibility with HART
communicators.
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Specifications |
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Voltage Measurement
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Range: |
0 to 28V dc |
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Resolution: |
1MV |
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Accuracy: |
0.015% of reading + 2 LSD |
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Current Measurement
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Range: |
0 to 24mA dc |
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Resolution: |
0.001mA dc |
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Accuracy: |
0.015% + 2 LSD |
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Current Sourcing
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Range: |
0 to 20mA or 4 to 20mA¹ |
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Accuracy: |
0.015% of reading + 2 LSD |
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Drive Capability: |
1200Ω @ 24mA |
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Loop Power while measuring mA: |
24v |
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Display Current and % of Span: |
Yes |
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Auto Step, Auto Ramp: |
Yes |
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Span Check: |
Yes |
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| Note¹ will over-range to 24mA |
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General Specifications |
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Operating Temperature |
-10ºC to
55ºC |
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Storage Temperature |
-30ºC to
60ºC |
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Humidity
(without condensation) |
0 to 90%
(0ºC to 35ºC);
0 to 70% (35ºC to 55ºC) |
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Temperature Coefficient |
-10ºC to
18ºC, 28ºC to 55ºC, ±.005% of range per ºC |
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Safety |
CSA C22.2
No. 1010.1:1992 |
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EMC |
EN50082-1:1992 and EN55022:1994 Class B |
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Maximum Voltage |
30V
(protection circuit for 230V) |
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Size |
152 mm x
70 mm x 41 mm |
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Weight |
224 g (340
g including holster) |
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Shock and vibration |
per
MIL-T-28800 for a Class 2 Instrument |
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Battery Life |
18 hours typical, at 12mA |
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Warranty |
Three
years |
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| Ordering Information |
| Model |
Description |
Model 707
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Loop Calibrator, including
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