Seaward ARE 1557 - Manual (Page 11)

ERT1557
Operating Instructions
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4 Unit Description
The ERT 1557 is a hand held, earth resistance tester.
Tests are selected using the rotary switch.
4.1 Identifying parts of the unit
The numbering below refers to fig. 1 and fig. 2.
1. LCD Display
2. Function keys F1, F2, F3 and F4
3. TEST key
4. Rotary Switch
5. Test lead inputs Es, E, S and H
6. Current clamp input
7. Current clamp input
8. Data port
4.2 LCD display messages
Display Meaning
>50k W Result is above the measuring range
for 2 and 3 point earth resistance
>2k W Result is above the measuring range
for current clamp earth resistance
>1999k Wm Result is above the measuring range
for earth resistivity
▲ More than 20Veff noise present. The
ERT 1557 is unable to make a
measurement.
RP The resistance between the Potential
test spike and earth is too high.
RC The resistance between the Current
test spike and earth is too high.
No Request cannot be executed e.g.
result cannot be stored in a particular
memory location or particular result
cannot be recalled.
001 Memory location identifier
0.0.1 Measurement location identifier
Alternate
E-ES/ES-S
The ES and E connections are
reversed. Correct the problem to
proceed
Stor Storing result
RCL Recalling result
Prt Downloading data mode