Simpson Electric 228 Data Sheet

228 Leakage

1

Rev. 04-15

Current Tester

Model 228 Special Purpose AC/DC Milliameter

Designed specically to measure hazardous "Leakage Currents" or "Touch
Currents" which may appear when a person touches the conductive surface
of electrical or electronic equipment.

The 228 is designed around IEC990, ANSI and UL guidelines.

• True RMS Readings

• Reads in Measurement Indication Units (MIU) up to .005 MIU

• Output Allows Measurement of Peak Current
in Non-Sinusoidal Wave Forms

• Let-Go, Reaction, and Burn Hazard Response Networks

• Detects dangerous AC & DC Leakage currents

• Includes Test Leads, Alligator Clips, Batteries and Manual

Ordering Information

Leakage Tester Catalog Number

228 Leakage Current Tester 40027

Accessories Catalog Number

Test Leads w/Screw-On Alligator Clips 00125

Case, Black Padded Nylon Carrying 00834

Optional carrying case includes convenient
storage pouch for test leads and Operators
Manual

228 Leakage

2

Rev. 04-15

Current Tester

Specications

The specications apply to sinusoidal AC waveforms only.
Accuracy is not guaranteed for non-sinusoidal or complex waveforms.

General

Equivalent network component values Designed around IEC 990 (excluding fuse)
Equivalent measuring instrument load 1 MΏ - 10 pF 1 MΏ - 62 pF 1 MΏ - 1 pF
Ranges 0.3, 1, 3, 10 M.I.U. 0.3, 1, 3, 10 M.I.U. 0-100 mA RMS
Current accuracy ±2% F.S. @ 60 Hz
Meter measurement method True RMS
Meter frequency response (Relative to ANSI C101-1992 or UL-1459 2nd edition)
DC to 1 Hz Pointer shall track within 5% of peak
2Hz to 19Hz (Accuracy not supported)
20 Hz to 200 KHz ±2% F.S. ±2.5% F.S. ±2% F.S.
200 KHz to 1 MHz ±2% F.S. ±2.5% F.S. ±5% F.S.
Output sensitivity Full scale meter indication equals 1V RMS (Measured with a 1 MΏ , 12 pF load)
Output accuracy ±2% of reading @ 60 Hz
Output frequency response (Relative to ANSI C101-1992 or UL-1459 2nd edition)
DC to 50Hz ±2% of reading
50 Hz to 100 KHz ±2.5% of reading +2% / -3% of reading ±2% of reading
100 kHz to 1 MHz ±5% of reading
Voltmeter range 0-300 V (AC or DC)
Voltmeter accuracy:
DC to 1 Hz Pointer shall track within 5% of peak
2Hz to 19Hz (Accuracy not supported)
20 Hz to 1KHz ±3% F.S. @ 60 Hz (Add ±1% for every additional 100 Hz)
Voltmeter frequency response DC to 1 KHz
Power requirements (2) 9V (NEDA 1604A) batteries
Physical 7" x 5.25" x 3.125", 2-1/2 lbs (1.4kg), ABS plastic, fused input
Environmental 27°C ±2° C, 70% non condensing relative humidity
Maximum operating range 0° to 40° C

Reaction

Response Network

Let-Go

Response Network

Unweighted Burn Hazard

Response Network

Specications subject to change without notice

Any discussion in this document regarding UL, ANSI or IEC specications is for Reference purposes only.

The input network utilized in the M228 is detailed in Figures 1 through 3 on page 4 of the Manual.
The customer is advised to obtain the latest specication from the rating agency.

NOTE: For specication information call ANSI at [phone] or UL in Northbrook, IL at [phone].