BN-Series
0.56
LED
Display
The BN-45 is a 4 1/2 digit voltmeter in a compact 96x24 mm case with non-isolated 5VDC power.Another version of the BN-45, the BN-45I with internally isolated 9-36 VDC power, is also available.The case has a short depth of just 2.83 inches (72 mm) behind the panel.
The meter has three user-selectable ranges of 2V, 20V and 200V.The BN-45 may also be calibrated at the factory for these ranges or specially scaled for other ranges (see Ordering Infor-mation below).
The display is shipped standard with red LEDs, but green LEDs or super bright LEDs for high ambient light environments are also offered.Display Segments Test, Display Blank and Hold Reading are standard features.
Input Configuration:.......Single-ended, with optional provision to offset the zero of the reading displayed
Input Impedance:............Approx. 1M
Input Protection:.............250VAC/DC for all range
Full Scale Ranges:.........1.9999VDC (standard) 19.999VDC 199.99VDC
Conversion Rate:............3 readings per second
Accuracy:........................(0.05% of reading + 3 counts)
Temperature Coefficient: 10 ppm/C in ratiometric mode; 50 ppm/C
in 2V ranges
Warmup Time:.................One minute to speci fied accuracy
Maximum Resolution:.....100V in 2V range
Zero Stability:..................Autozeroed.0.1 counts per oC
Display:.............................0.56" High efficiency LED's; Display Hold
Blank and Test provided
Over-range Indication:...All digits flash to indicate overrange
BN-45 Power Supply:......5VDC at 300mA
BN-45I Power Supply:.....9-36V DC at 300mA
Operating Temperature:.. 0 C to +60 C
Dim
Bright
Storage Temperature:.....-40 to +85 C
Relative Humidity:...........95% (non-condensing)
Case Dimensions:...........Bezel 3.62 x 0.95 (96 x 24mm)
Depth behind Bezel 2.23 (56.5mm) plus 0.49 (12.47mm) for connector.
Commom
Weight:.............................85 gms (3.0 oz)
125 gms (4.4 oz) when packed
Dim/Blank
BN-35........ 3.5 digit, 0.2/2/20/200VDC, 5VDC Powered BN-35CL..... 3.5 digit, 4 to 20mA, Isolated 24V DC BN-35I....... 3.5 digit, 0.2/2/20/200VDC, Isolated 24V DC
BN-40BCD... 4.0 digit, Parallel or Multiplex BCD, 5VDC Powered BN-45........ 4.5 digit, 2/20/200VDC, 5VDC Powered BN-45I....... 4.5 digit, 2/20/200VDC, Isolated 9-36V DC
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ZERO Potentiometer (Pot) Optional
The Optional ZERO pot when installed is to the left of the SPAN pots (as viewed from the back of the meter). Typically it enables the displayed reading to be offset 1000 counts.
SPAN Fine Potentiometer (Pot)
The 15 turn SPAN Fine pot is the middle pot (as viewed from the back of the meter). Typical adjustment is 20% of the input signal range.
RANGE SELECT Header
Range values are marked on the PCB. Three positions are provided. After selecting a new range with the single jumper clip, recalibration is required.
Changing the range to 20V or 200V full scale.The BN-45 comes standard as a 2VDC meter.The factory can recalibrate the meter to a different range either when the meter is ordered or as an after sale service.
P.N.: DU-CASEDES
To customize the face plate, clear adhesive label containing various popular descriptors may be ordered. Choose the descriptor desired, peel off the adhesive backing and align the descriptor in the center right of the faceplate.
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PIN
1 2 3 4 5 6
Decimal Point Selection
Display Test: All numeric display segments will light up when Display Test Pin 6 is connected to Common Pin 3.
Display Blank/Dim: If Pin 4 is connected to Common Pin 3, the display will be blanked out. If a 1K pot is connected between Pin 4 and Common Pin 3, the brightness of the display can be adjusted with the potentiometer.
Hold Reading: If Pin 5 is left unconnected, the meter will operate in a free-running mode. When Pin 5 is connected to the Hold/Test/Blank Common Pin 3, the meter will latch up. A/D conversions will continue, but the display will not be updated until the Hold Pin and Common pins are disconnected.
The BN-45 and BN-45I are calibrated at the factory with a precision DC voltage source. Whenever the range is changed, the meter needs to be recalibrated.The Span Potentiometer is accessible with the front cover of the meter removed for user calibration.
1.Make sure there is proper DC power and input.
2.Connect the power supply.
3.Apply a positive signal input equal to 95% of the full
scale input.
4.Adjust Span Potentiometer in the front of the meter so that the displayed reading agrees with the signal input.
5.The BN-45/BN-45I is now calibrated and ready for use.
Power Supply
The BN-45 ships from the factory with a non-isolated 5VDC power supply.For applications where isolation is required between the power and signal grounds, use the Texmate model BN-45I. This model is available with 9-36 VDC power options and generates an internally isolated supply.
1/16 DIN 96x24mm (3.78x0.95) Short Depth Case Dimensions and Panel Cutout
TOP VIEW
PANEL CUTOUT
FRONT VIEW
SIDE VIEW
TO REMOVE REAR COVER
Standard Options for this Model Number
Special Options and Accessories
Part Number
Description
BN-45................ 4.5 digit Red LED, 2/20/200VDC, 5VDC Powered
BN-45I............... 4.5 digit Red LED, 2/20/200VDC, 9-36VDC Powered
DISPLAy
Part Number
Description
SPECIAL OPTIONS (Specify Inputs & Req. Reading)
Z50K........ Zero offset 50 K Pot.
ZR.......... Range Change from Standard Range shown in BOLD Type. Please specify range when ordering.
ZS.......... Custom display scaling within standard range
ACCESSORIES
STANDARD......... Red LED, 0.96 inch high.....................
BN-GREEN4.. Green LEDs, 0.56 inch high................
BN-BRIGHT... super bright Red LEDs, 0.56 inch high........
75-DMTC96X24....Side Slide Brackets, extra set (96x24mm) 75-DBBZ96X24....Black Bezel for 96x24mm Case DN.CAS96X24.....Din Case 96 X 24 Short Depth with Bezel
1934 Kellogg Ave. Carlsbad, CA 92008 Tel: 1-760-598-9899 USA 1-800-839-6283 Thats 1-800-TEXMATE
Email: [email protected] [email protected]
Web: www.texmate.com
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Texmate is an American manufacturer of high durability industrial grade panel meters, bar graphs, and transducers. Texmate's meters are frequently equipped with relays and various signal outputs for industrial automation applications and are known for their extremely long service life.