Precision Digital Corporation PD687 Quick Start Manual

MODEL PD687 3
LOOP-POWERED METER
ACTUAL SIZE DIGITS
• 1 Volt Drop
• 1" High Display
• Operates from -40 to 80°C
• Easy Calibration and
Installation
SPECIFICATIONS
Except where noted all specifications apply to operation at +25°C.
INPUT: 4-20 mA @ 24 VDC Maximum.
DISPLAY: 1.0" (25.4 mm) high LCD, ±1999.
CALIBRATION: Two-step; non-interacting zero and span.
CALIBRATION RANGE: 4 mA input: -1000 to +1000;
20 mA between 20 to 2000 counts > 4 mA display.
MAXIMUM VOLTAGE DROP: 1 VDC @ 20 mA.
ACCURACY: ±0.1% of span, ±1 count.
CONVERSION RATE: 2.5 conversions/second.
CONNECTIONS: Screw terminal block.
OPERATING TEMPERATURE RANGE: -40 to 80°C.
APPROVAL: The PD687-EX is FM Approved and CSA
Certified as explosion-proof for Class I, Division 1, Groups C
and D; dust-ignition proof for Class II, Division 1, Groups E,
F, and G; and Class III hazardous (classified) locations.
LCIE (CENELEC) certified as flameproof, EEx d IIB + H2 T6.
ENCLOSURE: Explosion-proof cast aluminum, 0.3% max.
copper content, NEMA 3, 4, 7, and 9, suitable for location in
Class I, Division 1, Groups B, C, & D and Class II, Groups
E, F, & G, Class III hazardous outdoor (Type 4X) locations.
CENELEC: EEx d IIB + H2 IP 66. One
WARRANTY: 1 year parts and labor.
EXTENDED WARRANTY: May be extended an additional
12 months by returning the Product Registration Form within
2 months from date of purchase. Go to www.predig.com for
online registration.
DISCLAIMER: The information contained in this document
is subject to change without notice. Precision Digital makes
no representations or warranties with respect to the contents
hereof, and specifically disclaims any implied warranties of
merchantability or fitness for a particular purpose.
PRECISION DIGITAL CORPORATION
/ DIGIT EXPLOSION-PROOF
1
2
3 " NPT hole provided.
/
4
ORDERING INFORMATION
Model Description
PD687 Loop-Powered Meter
in Explosion-Proof Enclosure
PD687-EX FM, CSA, & CENELEC
Explosion-Proof Meter
PDA6845 2" Pipe Mounting Kit
PDA6545 2" Pipe Mounting Kit
Please visit the Precision Digital website at
www.predig.com
for complete information
on the entire line of Precision Digital products,
technical information and much more.
YOUR LOCAL DISTRIBUTOR IS:
(2 mounting holes)
(4 mounting holes)
www.predig.com