Hioki Digital MΩ Hitester 3154

20 to 1000V 6-Range Insulation Resistance Tester for Systems Integration

The Hioki electrical safety test instrument series is designed for insulation resistance and voltage withstand testing of electrical devices and components according to various safety standards. The 3154 performs insulation resistance testing on components and equipment using direct current voltage, and is equipped with six selectable test voltages to deliver efficiency and versatility for applications fom the laboratory to production and inspection line testing.

Note: Main unit cannot operate alone. Please select and purchase the test lead options appropriate for your application separately.

Six test voltages from 25 V to 1000 V
• Stores 10 setting states
• Comparator and timer functions facilitate easy testing in accordance with various safety standards
• Externally control start, stop, and other setting condition changes
• Measuring terminals in rear panel is convenient for building measurement systems

■ Basic specifications (Accuracy guaranteed for 1 year)

Measurement items Insulation resistance (Applied DC voltage method)
Testing voltage/measurement ranges (Auto/Manual) 25/ 50 V: 2.000/ 20.00/ 200.0 MΩ,
100/ 250/ 500/ 1000 V: 2.000/ 20.00/ 200.0/ 2000 MΩ (at 500 or 1000 V testing, up to 4000 MΩ)
Basic accuracy ±2 % rdg. ±5 dgt. : at 25/ 50/ 100 V [0 to 20 MΩ], 250 V [0 to 100 MΩ], 500/ 1000 V [0 to 999 MΩ]
Measurement speed Fast: 10 times/s, Slow:1 time/s, selectable, Response times: less than 0.5 sec
Display LED
Internal memory Testing voltage, Limit level value of comparator , Testing mode, Beep sound of decision, Testing time, Delay time, Resistance range, Measurement speed
Number of memory: Max. 10 (External control to save or load)
Comparator setting Key press: Select lower limit value from designated options
RS-232C: Set optional lower limit value within measurement range
Judgement process PASS: Measurement value ≥ lower limit, FAIL: Measurement value < lower limit, Beep sound, PASS/FAIL display, signal output to external I/O
Test duration timer After measurement START is initiated and waiting time (0.35 s max.) + designated test duration elapses. Test duration: 0.5 to 99 s
Delay time timer After measurement START is initiated and until waiting time (0.35 s max.) + designated delay time elapses. Delay time: 0.1 to 99 s
Analog output DC +4 V f.s.
Interfaces RS-232C (Measurement value printing is possible with connect the Printer 9442),
External I/O (External control input, Judgment result)
Power supply 100 to 240 V AC, 50/60 Hz, 15 VA max.
Dimensions and mass 215 mm (8.46 in) W × 61 mm (2.40 in) H × 213 mm (8.39 in) D, 1.1 kg (38.8 oz)
Accessories Instruction Manual ×1, Power cord ×1


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