12
Temperature over 165
o
F (74
o
C) at photocell
For gas flames (Flame Rod):
Ignition interference (A flame signal current difference with the ignition both on and off
greater than 0.5
A indicates the presence of ignition interference)
Insufficient ground (must be at least 4 times the detector area)
Flame lifting off burner head (ground), or not continuously in contact with the flame rod
Temperature in excess of 600
o
F (316
o
C) at the flame electrode insulator causing short
to ground.
Electric Field EF-Detection (Models 237R & 239R only)
Press the
EF
button momentarily to toggle EF-Detection feature. T
he meter displays “
EF-H
”
when it is ready. If it is too sensitive for your applications, press
(Level)
button momentarily
toggles to lower sensitivity “
EF-L
”. The detected Electric Field strength is indicated as a
series of bar-graph segments on the display plus variable beep tones.
●
Non-Contact EF-Detection
: An antenna is located along the top-left end of the meter,
which detects electric field surrounding energized live conductors. It is ideal for tracing live
wiring connections, locating wiring breakages and to distinguish between live and earth
connections.
●
Probe-Contact EF-Detection
: For more precise indication of live wires, such as
distinguishing between Live and Ground connections, use direct contact testing with one
single test-probe via the input terminal COM or V. The COM terminal (Black) has the best
sensitivity.
Summary of Contents for BM236R
Page 1: ...USER S MANUAL BM236R BM237R BM239R ...
Page 9: ...8 ...