Elma 22s – 25a
24
the SELECT button for approximately 6 seconds to master reset the system if such a situation
occurs.
6) Specification
General Specifications
Display & Update Rate:
BM22s: 3-3/4 digits 4000 counts; Updates 3 per second nominal
BM25a: 3-5/6 digits 6000 counts; Updates 5 per second nominal
Operating Temperature: 0
o
C ~ 40
o
C
Relative Humidity: Maximum relative humidity 80% for temperature up to 31
o
C decreasing
linearly to 50% relative humidity at 40
o
C
Altitude: Operating below 2000m
Storage Temperature: -20
o
C ~ 60
o
C, < 80% R.H. (with battery removed)
Temperature Coefficient: Nominal 0.15 x (specified accuracy)/
C @ (0
C ~ 18
C or 28
C ~
o
o
o
o
40
o
C), or otherwise specified
Sensing: Average sensing
Pollution Degree: 2
Safety: Meets IEC/UL/EN61010-1 Ed. 3.0, IEC/EN61010-2-030 Ed. 1.0, IEC/EN61010-2-033
Ed. 1.0, IEC/UL/EN61010-031 Ed. 1.1, CAN/CSA-C22.2 No. 61010-1-12 Ed. 3.0
Transient Protection: 4kV lightning surge (1.2/50µs)
Measurement Category:
BM22s: CAT II 600V and CAT III 300V
BM25a: 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 accuracy + 45d
Performance above 3V/m is not specified.
Overload Protection:
BM22s: 600VDC & VAC rms
BM25a: 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):
BM22s & BM25a: 2mA
APO Consumption (typical): 2.2µA
APO Timing:
BM22s: Idle for 30 minutes
BM25a: Idle for 3 minutes
Dimension / Weight: L113mm x W53mm x H10.2mm / Approx. 78 gm
Special Features:
BM22s: Data Hold, and 30ms MAX Hold
BM25a: AutoCheck
TM
(Automatic V & Ω Selection), and EF-Detection
Accessories: Battery installed, and User's manual
Optional Accessories: BH-20R protective holster, and BSC-20 soft carrying pouch