NOSHOK 1900 Series Current Loop Powered Process Indicators - Manual

1
·
DUAL RANGE, 4 to 20 mA OR 10 to 50 mA
·
3½-DIGIT, 0.6" (15.2 mm) HIGH DIGITS
·
POSITIVE IMAGE TRANSFLECTIVE LCD WITH RED BACKLIGHT
OR POSITIVE IMAGE REFLECTIVE LCD (1900C-1/1900C-2)
·
POSITIVE IMAGE TRANSFLECTIVE LCD WITH RED BACKLIGHT
OR NEGATIVE IMAGE TRANSMISSIVE WITH RED OR
YELLOW/GREEN BACKLIGHT (1900C-3/1900C-4)
·
SPAN AND OFFSET CAPABILITY
·
NEGATIVE AND OVERRANGE INDICATION
·
SELECTABLE DECIMAL POINT POSITION
·
NEMA 4X/IP65 SEALED FRONT PANEL BEZEL
·
FITS DIN STANDARD CUT-OUT 2.68" (68 mm) X 1.30" (33 mm)
FOR USE IN HAZARDOUS LOCATIONS:
Class I, Division 2, Groups A, B, C, and D
Class II, Division 2, Groups F and G
Class III, Division 2
DESCRIPTION
The 1900C-1/1900C-2 and 1900C-3/1900C-4 are additions to the NOSHOK
1900 Series product line. The 1900C-1/1900C-2 uses a 4 to 20 mA or a
10 to 50 mA input signal as operating power. The input signal is also used
to power the backlighting on the 1900C.2 Unit. The 1900C.3/1900C.4 uses to power the backlighting on the 1900C-2 Unit. The 1900C-3/1900C-4 uses
a 4 to 20 mA or a 10 to 50 mA input signal to power the unit. An external
power supply is used to power the 1900C-3/1900C-4 backlighting to provide
a brighter, more consistent display and a lower compliance voltage.
The units have a 3½-digit LCD display with 0.6" (15.2 mm) high digits and
a DIP switch selectable decimal point. The 1900C-1/1900C-2 display is
available in positive image reflective (dark digits, reflective background) or
positive image transflective (dark digits, illuminated background) with red
backlighting. The 1900C-3/1900C-4 display is available in positive image
transflective (dark digits, illuminated background) with red or yellow/green
backlighting or negative image transmissive (illuminated digits, dark
background) with red or yellow/green backlighting.
The ability to scale the display allows indication in any desired unit of
measurement such as temperature, pressure, humidity, fluid flow, etc. The unit
is calibrated at the factory with 0.0 displayed @ 4 mA input and 100.0 displayed
@ 20 mA input.
The units are contained in a lightweight, high impact plastic case with a clear
viewing window. When properly installed, the sealed front panel meets NEMA
4X/IP65 specifications for wash-down and dusty environments.
SAFETY SUMMARY
All safety related regulations, local codes and instructions that appear in the
manual or on equipment must be observed to ensure personal safety and to
prevent damage to either the instrument or equipment connected to it. If
equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
WARNING - EXPLOSION HAZARD - SUBSTITUTION
OF COMPONENTS MAY IMPAIR SUITABILITY FOR
CLASS I, DIVISION 2 / CLASS II, DIVISION 2 / CLASS III, DIVISION 2
SPECIFICATIONS
1. DISPLAY: 3½-digit (-1999 to 1999), 0.6" (15.2 mm) high digits.
The 1900C-1/1900C-2 is available with a positive image reflective LCD
or a red backlit positive image transflective LCD. The intensity of the
backlighting will vary with the input signal.
The 1900C-3/1900C-4 is available with a positive image transflective LCD
with red or yellow/green backlighting or a negative image transmissive with
red or yellow/green backlight.
A minus sign is displayed when the indicator is adjusted for a negative offset.
Overrange: Overrange is indicated by a “1” in the most significant digit and
the blanking of the three least significant digits.
2. EXTERNAL BACKLIGHT POWER: (1900C-3/1900C-4 only)
9 - 28 V dc, @35 mA typ., 50 mA max. Power Supplies must be Class 2
(NEC) or SELV rated. Above 26 V dc, derate the operating temperature to
50°C.
3. DECIMAL POINTS: Three DIP switch selectable, decimal point positions
allow the display to be read in tenths, hundredths or thousandths.
MODELS 1900C-1/1900C-2/1900C-3/1900C-4 - CURRENT LOOP POWERED PROCESS INDICATORS
DIMENSIONS “In inches (mm)”
Note: Recommended minimum clearance (behind the panel) for
mounting clip installation is 2.15" (54.6) H x 3.00" (76.2) W.
N O S H O K
1900
S E R I E S
T E C H N I C A L M A N U A L
1010 WEST BAGLEY ROAD
BEREA, OHIO 44017
E-MAIL: [email protected]
WEBSITE: www.noshok.com FAX 440/243-3472
PHONE 440/243-0888
CURRENT LOOP POWERED PROCESS INDICATORS