Getting Started 1
U1241B/U1242B User’s and Service Guide 5
The Annunciator at a Glance
To view the full display, press and hold while turning the rotary
switch from OFF to any non- OFF position. Press any key to resume
normal functionality mode.
Figure 1-3 Annunciator display of a U1242B handheld digital multimeter
Table 1-2 Descriptions of each annunciator
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
21
20
22
23
No. Descriptions No. Descriptions
1 21-segment analog bar graph display 12 MinMax Recording mode
2 Capacitor discharge indicator 13 Harmonic Ratio mode (for U1242B)
3 Cold junction of ambient temperature disabled 14 Data logging mode (for U1242B)
4 Audible continuity for resistance and diode function 15 Data logging View mode (for U1242B)
5 Primary display 16 Auto or manual for data logging mode and datalog
viewing mode
6 AC or DC measurement mode 17 Secondary display (temperature display)
7 Auto range 18 Null math function
8 Diode / Audible continuity 19 Thermocouple type for temperature measurement
9 T1, T2 and T1 – T2 temperature measurements scan
(for U1242B)
20 Primary measurement units
21 Measurement range
10 Data hold 22 Low battery indicator
11 T1, T2* or T1 – T2* temperature measurements 23 Auto power off indicator
*T2 temperature measurement and delta (T1 – T2) are only available for U1242B.
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