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Elma 22 - 25 - 27
side 38
and hold the SELECT button for approximately 6 seconds to master reset the system if such a
situation occurs.
6) SPECIFICATION
GENERAL SPECIFICATIONS
Display & Update Rate:
BM22: 3-3/4 digits 4000 counts; Updates 3 per second nominal
BM25 & BM27: 3-5/6 digits 6000 counts; Updates 5 per second nominal
o
o
Operating Temperature: 0
C ~ 40
C
o
Relative Humidity: Maximum relative humidity 80% for temperature up to 31
C decreasing linearly
o
to 50% relative humidity at 40
C
Altitude: Operating below 2000m
o
o
Storage Temperature: -20
C ~ 60
C, < 80% R.H. (with battery removed)
o
o
o
o
Temperature Coefficient: Nominal 0.15 x (specified accuracy)/
C @ (0
C ~ 18
C or 28
C ~
o
40
C), or otherwise specified
Sensing: Average sensing
Pollution Degree: 2
Safety: Meets IEC61010-1 (1st Ed. + A1 & A2), UL61010B-1 (1st Ed.), CAN/CSA-C22.2 No.
1010.1-92
Transient Protection: 4kV lightning surge (1.2/50μs)
Measurement Category:
BM22 & BM27: CAT II 600V and CAT III 300V
BM25: CAT II 450V andCAT 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 accuracy + 45d
Performance above 3V/m is not specified
Overload Protection:
BM22 & BM27: 600VDC & VAC rms
BM25: 450VDC & VAC rms
Low Battery: Below approx. 2.4V
Power Supply: 3V standard button battery x 1 (IEC-CR2032; ANSI-NEDA-5004LC)
Power Consumption (typical):
BM22 & BM25: 2mA
BM27: 6mA for Voltage functions on Auto-VΩ position, and 2mA for other functions
APO Consumption (typical): 2.2μA
APO Timing:
BM22: Idle for 30 minutes
BM25 & BM27: Idle for 3 minutes
Dimension / Weight: L113mm x W53mm x H10.2mm / Approx. 78 gm
Special Features:
BM22: Data Hold, and 30ms MAX Hold
TM
(Automatic V & Ω Selection), and EF-Detection
BM25 & BM27: AutoCheck
Accessories: Battery installed, and User's manual
Optional Accessories: BH-20R protective holster, and BSC-20 soft carrying pouch
Electrical Specification
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