Ametek Jofra mACAL Loop Calibrator

SKU
MACAL
Manufacturer:
JOFRA
JOFRA

Key Features:

  • Generates and Measures the Loop Current
  • Stabilized 24Vdc Loop power
  • Drives up to 900 Ohms
  • Resolution of 0.001mA in Measurement Mode
  • Change Display to Read % of Full Scale
  • Special Fixed Steps stored for Linear and Flow Transmitters
  • Choose between Manual and Automatic Steps
  • Set 10 to 30-seconds between Steps
  • Available with Optional NIST Certification
Product Options:
$940.00

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     The mAcal Milliamp Loop Calibrator is an economical, easy to use calibration device for generating and measuring mA signals. The instrument is especially designed for 2-wire transmitter loops with 4-20mA signals and it is available with optional NIST certification.

     The unit's compact size and light weight is ideal for field use. Dedicated functions keys located on the front of the device allow for simple, single-hand operation. The keypad provides positive feedback to the user and each key is labeled for easy operation. A large, high-contrast, 5-digit LCD display indicates numeric values in mA, %, V or sec. Resolution is 0.001mA in measurement mode. The user can change the display to read in % of Full Scale. Flow readings are shown in % of Flow. The display also indicates error codes. Alarms may be displayed showing loop mismatch, reverse polarity and overrange. The unit will also display low battery notification message. Plus, the unit is equipped with an automatic shut-off features that prevents accidental battery discharge. A built-in, permanent fuse eliminates the need to replace the fuse in the case of overloads.

     The mAcal Loop Calibrator provides loop power control in the range of 0-45V and the instrument may be used to generate a stable 24Vdc supply for the loop. The mAcal Loop Calibrator also reduces the time and complexity often associated with loop calibration. The instrument features special fixed steps for performing linear and flow transmitter or valve positioner calibrations. The instrument has seven different built-in current values, and the user may choose between manual and automatic steps with 10- or 30-seconds between steps. For example, you can perform an entire test by placing the mAcal Calibrator in the process loop and operating from the control room.

The unit comes complete with the mAcal Calibrator, carrying case, two test leads with alligator clips, four batteries (Type LR6, AA) and a User's Guide.

FUNCTIONAL SPECIFICATIONS

Current source
Range...................................................................0 to 24 mA
Resolution................................................................ 0.01 mA
Accuracy (k=2):............................................. ±0.05% of F.S.
Maximum load......................................................... 900 ohm
Temperature coefficient...........0.005% per °C (-10 to 40°C)
................................................0.003% per °F (-14 to 104°F)
Current measurement
Range...................................................................0 to 24 mA
Resolution.............................................................. 0.001 mA
Accuracy (k=2).............................................. ±0.05% of F.S.
Input impedance....................................................... 10 ohm
Temperature coefficient...........0.003% per °C (-10 to 40°C)
................................................0.002% per °F (-14 to 104°F)
Voltage measurement
Range:............................................................. 0 to +45 VDC
Resolution................................................................ 0.1 VDC
Accuracy.................................................................. 0.5 VDC
Input impedance.................................................... 10M ohm

PHYSICAL SPECIFICATIONS

Power supply
120 VDC Mains Adapters: ..... 103964, 6 VDC / 240 mA US/
...................................Japan - 1.3mm DC female connector
Batteries ......................... 4 Type LR6, AA, 1.5 VDC Alkaline
Battery life ....................200 hours with external loop power
................. 20 hours with 12 mA output/internal loop power
Instrument weight (incl. batteries, leads and case)
Weight.............................................................. 0.8 lbs /355g
Instrument dimensions (incl. batteries, leads and case)
Size: L x W x H.........6.85 x 2.6 x 1.0 in / 174 x 66 x 26 mm
Miscellaneous
Operating (ambient) temperature.-14 to 104°F (-10 to 40°C)
Storage (ambient) temperature......-4 to 122°F (-20 to 50°C)
CE Conformity...........89/336/EEC, EN50081-1, EN50081-2,
.................................EN50082-1. EN50082-2, (91/157/EEC)
The JOFRA mAcal is type approved by Det Norske Veritas.
Find the certificate at www.jofra.com
Approval, Certificate no...........................................A-10549

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