6
Measurement Category:
Models 22s & 27s:
CAT II 600V and CAT III 300V
Model 25s
& 25a
: CAT II 450V and CAT III 300V
E.M.C.:
Meets EN61326 (1997, 1998/A1), EN61000- 4-2 (1995), & EN61000-4-3 (1996)
In an RF Field of 3V/m:
Capacitance function is not specified
Other function ranges:
Total accuracy = Specified ac 45d
Performance above 3V/m is not specified
Overload Protection:
Models 22s & 27s
:
920VDC & VAC rms
Model 25s
& 25a
:
855VDC & VAC rms
Low Battery:
Below approx. 2.4V
Power Supply:
3V standard button battery x 1 (IEC-CR2032; ANSI-NEDA-5004LC)
Power Consumption (typical):
Model 22s, 25s
& 25a
: 2mA
Model 27s
: 6mA for Voltage functions on Auto-V
position, and 2mA for other functions
APO Consumption (typical):
2.2
A
APO Timing:
Model 22s
: Idle for 30 minutes
Model
25a,
25s & 27s
: Idle for 3 minutes
Dimension / Weight:
L113mm x W53mm x H10.2mm / Approx. 78 gm
Special Features:
Model 22s
: Data Hold, and 30ms MAX Hold
Model
25a,
25s & 27s
: AutoCheck
TM
(Automatic V &
Selection), and EF-Detection
Accessories:
Battery installed, and User’s manual
Optional Accessories:
BH-20R protective holster, and BSC-20 soft carrying pouch
Electrical Specification
Accuracy is given as +/- (% of reading number of digits) or otherwise specified @ 23
o
C +/- 5
o
C and less
than 75% R.H.
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DC Voltage (
Models
25a,
25s & 27s
)
RANGE
Accuracy
6.000V
0.5%+3d
60.00V
1.0%+5d
450.0V
1)
1.2%+5d
600.0V
2)
2.0%+5d
600.0V
3)
1.5%+5d
BM25 Input Impedance:
AutoCheck
TM
Lo-Z DCV: 160k
, 160pF nominal
BM27 Input Impedance:
AutoCheck
TM
Lo-Z DCV: 833k
(4.2k
when
displaying “Auto”), 90pF nominal
Hi-Z DCV: 5M
, 90pF nominal
NMRR: > 30dB @ 50Hz/60Hz
CMRR: > 100dB @ DC, 50Hz/60Hz; Rs=1k
DCV AutoCheck
TM
Threshold:
> +1.2VDC or < -0.6VDC nominal
1)
BM25 AutoCheck
TM
DCV only
2)
BM27 AutoCheck
TM
DCV only
3)
BM27 Hi-Z DCV only
DC Voltage (
Model 22s
)
RANGE
Accuracy
400.0mV
1.0%+2d
4.000V, 40.00V, 400.0V
2.0%+2d
600V
2.5%+4d
NMRR: > 50dB @ 50Hz/60Hz
CMRR: > 120dB @ DC, 50Hz/60Hz; Rs=1k
Input Impedance: 10 M
, 30pF nominal; (1000M
for 400.0mV range)
