ES-9250 Rev.5

C-HCL-A

CURRENT LOOP CHECKER

Functions & Features
• Used to perform a loop test during a maintenance, inspection or testing of an instrumentation system or plant
• Generates simulated signals at the receiver side in place of an on-site transmittter
• Compact and light weight to fit into a pocket
• Provides 4, 12, and 20 mA switchable as required
• Selectable between 2-wire and 4-wire systems

MODEL: C-HCL-A

ORDERING INFORMATION

• Code number: C-HCL-A

NOTICE

The C-HCL-A realizes stable constant current outputs; however, it is not suitable for adjustment and calibration of measuring instruments or precision instruments. Select appropriate instruments for adjustment and calibration according to rquirements.

RELATED PRODUCTS

• Test leads (Model: HCL-LEAD)

PACKAGE INCLUDES...

• Test leads (1.2 meters, red and black each one)
• AA cells (2 pieces)

GENERAL SPECIFICATIONS

Connection: 2 mm (0.08") diameter test plugs
Housing material: ABS resin
Mode switch: Switchable between 2-wire loop mode and 4-wire mode
The 2-wire loop mode controls current signals supplied from the power source such as a current loop supply, to perform a loop test (sink capability), whereas in the 4-wire mode, constant current is supplied to the transmitter
(source capability).
Output range: 0 – 24 mA DC
Output monitoring: Directly measure output current
Monitor jack: 2 mm (0.08") diameter
Power LED: Red LED turns on when the power is supplied.
Continuous operating hours: Approx. seven hours with load resistance 750 Ω, output 12 mA, and when three new alkaline AA cells are used.
Usage: Stand ot strap holder

OUTPUT SPECIFICATIONS

■ 2-WIRE LOOP MODE
Maximum input voltage: 24 V DC nominal
(28V DC max)
■ 4-WIRE MODE
Load resistance: 750 Ω
Maximum voltage across output terminals: 24 V DC ±0.5 V
■ COMMON SPECS
VR output range: Adjustable with the Current Adjuster in the range of 0 to 24 mA DC
Fixed output: Selectable with the Current Switch from 4, 12, and 20 mA
Monitor output: Available when the Monitor Switch is held at the M side.

INSTALLATION

Power supply: Two AA cells
Operating temperature: -5 to +40°C (23 to 104°F)
Operating humidity: 30 to 80 % RH (non-condensing)
Weight: Approx. 70 g (2.47 oz) excluding batteries

PERFORMANCE (% of setting value)

Accuracy: ±2.5 %
(% of the fixed settings at 4, 12, or 20 mA)

EXTERNAL VIEW

EXTERNAL DIMENSIONS unit: mm [inch]