Message 21075 in TECH.WW
From: G8MNY
Date: Sun, 19 Apr 26 08:09:00 Z
Newsgroups: TECH.WW
Subject: Lab Measuring DMM
Message-ID: <57566_GB7CIP>
Path: N2MH4|GB7BED|GB7YEW|GB7CIP
R:260419/0812Z 30390@N2MH4.#SENC.NC.USA.NOAM LinBPQ6.0.24
R:260419/0811Z 10026@GB7BED.#21.GBR.EU LinBPQ6.0.25
R:260419/0811Z 17361@GB7YEW.#79.GBR.EURO LinBPQ6.0.24
R:260419/0809Z @:GB7CIP.#32.GBR.EURO #:57566 [Caterham Surrey GBR]
From: G8MNY@GB7CIP.#32.GBR.EURO
To : TECH@WW
By G8MNY (Corrected Feb 16)
(8 Bit ASCII graphics use code page 437 or 850, Terminal Font)
Years ago I bought a large not working 19" LAB DMM (Datron 1061a). It is an
extremely precise 7.5 digits DMM for its time of 1983. Luckily it came with all
the handbooks and I am pleased to say is quite serviceable now after finding a
silly PCB plug fault.
Here is part of the exacting specification...
+/- 1.999999 on most ranges with the filtering & averaging options in.
DC VOLTS Input Z ---- Accuracy since last Cal------
Range: 24hr, 90 day, 1 year
DC CURRENT ---- Accuracy since last Cal------
Range: 24hr, 90 day, 1 year
RESISTANCE Test ---- Accuracy since last Cal------
Range: Current 24hr, 90 day, 1 year
it also measures in circuit 1 of 3 Rs.
AC RMS VOLTS Input Z ---- Accuracy since last Cal------
Range 24hr, 90 day, 1 year
Frequency Response flat 10Hz - 1MHz @ -2%
True RMS measurements to 7:1 crest to mean factor.
AC RMS CURRENT ---- Accuracy since last Cal------
Range: 24hr 90 day, 1 year
0.1-1A 0.1%, 0.2%, 0.3%
Shunts: as DC
True RMS measurements to 3:1 crest to mean factor.
Other features:
AC+DC True RMS option for Volts & Current as AC ranges.
Local or seperate screen guard system.
IEEE interface for automatic readings/logging.
Go/fail % testing.
Reading accuracy calculation.
Direct entry number keyboard.
Pre use calibrated self check.
Security key locked calibration, easy press button cal features.
See my tech bul on "Measuring 1 of 3 Rs"
Why Don't U send an interesting bul?
73 De John, G8MNY @ GB7CIP
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