22
110mA @20
Range
220mA @2.0
Range
Tester can perform at least 3000 Earth Continuity Test measurements with new
alkaline batteries at room temperature. These are standard tests of 1
with a duty
cycle of 5 seconds on and 25 seconds off.
Insulation Resistance @1mA test current:
50V output voltage: 25mA
100V output voltage: 45mA
250V output voltage: 85mA
500V output voltage: 170mA
1000V output voltage: 440mA
Tester can perform at least 950 insulation tests with new alkaline batteries at room
temperature. These are standard tests of 1000 V into 1 M
with a duty cycle of 5
seconds on and 25 seconds off.
Low Battery: approx. 4.6V
APO Timing: Idle for 20 minutes
APO Consumption: 50
A typical
Dimension: L208mm X W103mm X H64.5mm with holster
Weight: 635 gm with holster
Accessories: Test probe pair, Alligator clip pair, Remote control probe (Models 878 &
877 only), Holster, User's manual,
Bkp60 banana plug K-type thermocouple (Model 878
only)
Optional Accessories: Remote control probe (Model 876 only), BKB32 banana plug to
type-K socket plug adaptor (Model 878 only)
Special Features: Record MAX/MIN readings; Display Hold; Backlighted LCD; VFD V
& Hz readings; Lock-Test mode for Insulation resistance & Earth Continuity Test
(Models 878 & 877 only); BeepJack
TM
audible & visible input warning; PI/DAR mode
(Models 877 & 876 only); Compare mode (Models 877 & 876 only)
Electrical Specifications
Accuracy is
(% reading digits + number of digits) or otherwise specified, at 23
C
5
C & less than 80% relative humidity.
True RMS voltage & current accuracies are specified from 1 % to 100 % of range or
otherwise specified. Maximum Crest Factor < 1.70:1 at full scale & < 3.4:1 at half scale,
and with frequency components within the specified frequency bandwidth for non-
sinusoidal waveforms.
