Dwyer DL8 - Manual

DWYER INSTRUMENTS, INC. Phone: 219/879-8000 www.dwyer-inst.com
P.O. Box 373 • Michigan City, IN 46361-0373, U.S.A. Fax: 219/872-9057 e-mail: [email protected]
GENERAL
Eliminate traditional paper chart recorders with the Series
DL8 Process Data Logger. This versatile, mulit-channel data
logger monitors and stores up to 32,768 process readings
for later download to IBM compatible computers. Seven
external input channels easily interface with commom
transducer and transmitter outputs. Internal thermistor
measures ambient temperature conditions. The DL200
Windows
™ (Trendreader) software and connecting cable
(sold separately) makes programming the data logger sim-
ple and easy. The Series DL8 Process Data Logger is ideal
for monitoring temperature, relative humidity, pressure,
wind speed, current, voltage and power.
GENERAL INSTALLATION (for all DL Loggers)
The Trendreader software must be installed on your com-
puter prior to the use of any data logger described in this
reference.
NOTE: For additional information on graph manipulation,
custom equations, modern setup, and sample rate tables,
consult the Trendreader software manual.
Setup
To setup your datalogger you must first have Trendreader
software installed and running on your computer. You can
then configure your logger with various options by plugging
into your computer via the interface cable. From the
Communicate menu, choose Preferred Logger SR+. To
access the logger window, double click on the logger icon
or click Communicate on the menu bar and choose the
highlighted Open COM from the menu.
Series DL8 Process Data Logger
Specifications - Installation and Operating Instructions
Bulletin E-90-DL8
Input Jack for Interface Cable
2.95
[75]
0.656
[17] Temperature
Sensor
Security
Eyelet
3.375
[9.5]
Magnetic
Strip
0.45
[12]
PHYSICAL DATA
No. of Channels: Eight; One
for internal thermistor and
seven for external analog
inputs.
Accuracy: ±1% of full scale.
Internal Thermistor Range:
-40 to 158°F (-40 to 70°C).
Memory Size: 32,768 read-
ings.
Sampling Methods:
Continuous (First-in, First-out)
or Stop when full (Fill-then-
stop).
Sampling Rates: Selectable
from 8 seconds to once every
5 days.
Resolution: 8 bits (1 in 256).
Power: Built-in 3.6V Lithium
battery.
Power Consumption: 5-10
µA.
Clock Accuracy: ±8 sec-
onds per day plus one sam-
pling interval. Input Impedance:
0 to 200 mV: > 20MΩ.
0 to 2.5 V: > 20MΩ
0 to 5.0 V: 20KΩ
0 to 10.0 V: 40.9KΩ
0 to 25 mA: 100Ω
Maximum Input Voltage: All
Voltage channels: ±40 V,
reverse polarity protected. All
Current channels: ±7 V,
reverse polarity protected.
Ambient Operating Temp:
-50 to 160°F (-45 to 70°C), 0
to 95% RH, non-condensing.
Connection: Removable
screw terminal.
Computer Requirements:
IBM compatible 386 or above
and Windows
™ 3.1 or later
with 2 mB RAM and 2 mB
hard drive disk space, one ser-
ial port.
Housing: Noryl
™
Weight: 5 oz. (110 g).
SERIES DL8 PROCESS DATA LOGGER MODELS & EQNS
Model No.
DL8
DL81
Input Type
0 to 2.5 VDC
0 to5 VDC (2 channels)
0 to 10 VDC
0 to 200 mV DC
0 to 25 mA DC (2 channels)
All channels 0 to 25 mA.
Equation #
7
18
17
19
6
6
Table 1
Bulletin E-90-DL8 6/22/05 3:55 PM Page 1