2
Signet 8900 Multi-Parameter
General
Number of input channels: 2 or 4 or 6
Input signal types:
Digital (S
3
L):
Serial ASCII, TTL level 9600 bps
Frequency:
Range: 0 to 1500 Hz
Accuracy:
0.5%
of
reading
Measurement types:
Flow, pH, ORP, Conductivity/
Resistivity,
Pressure,
Temperature,
Level
or
user-defi ned (via 8058)
Derived measurements:
Sum, Difference, Ratio, % Recovery,
% Reject, % Passage, Power
Number of relays:
8 Maximum
(max 8 Dry-contact, max 4 Solid State)
Number of analog outputs: 4 (active and/or passive)
4 to 20 mA; and/or 0 to 5/10 VDC)
Enclosure and Display
Case Material:
PBT
Panel Gasket:
Silicone Sponge
Window:
Self-healing
polyurethane-coated
polycarbonate
Keypad:
4
buttons
Injection-molded
silicone
rubber
seal
Display:
Alphanumeric 2 x 16 Back-lit
LCD
Update rate:
1 s
LCD Contrast:
4 settings
Display ranges:
pH:
0.00 to 15.00 pH
pH Temp.:
-40 to 150 °C (-40 °F to 302 °F)
ORP:
-9999 to +9999 mV
Flow Rate:
0.0000 to 999999 units per
second, minute, hour or day
Totalizer:
0.00 to 99999999 units
Conductivity:
0.0000 to 999999
μ
S, mS, PPM & PPB (TDS),
k
Ω
, M
Ω
Cond. Temp.:
-99.9 to 250 °C (-148 °F to 482 °F)
Temperature:
-99.9 to 999.9 °C (-148 °F to 999.9 °F)
Pressure:
-99.99 to 9999 psi, kPa, bar
Level:
-99999 to 99999 m, cm, ft, in, %
Volume:
-99999 to 999999 cm
3
, m
3
, in
3
, ft
3
,
gal, L, lb, kg, %
1. Specifi cations
Dimensions
Splashproof
Rear Cover
3-8050.395
Removable Terminals
Mounting panel
Panel gasket
120 mm (4.73 in.)
188 mm (7.4 in.)
141 mm (5.54 in.)
96 mm
(3.8 in.)
92 mm
(3.6 in.)
3-8900.620
100−240VAC
50−60Hz, 24VA MAX
~
12−24 VDC
0.7 A MAX.
N
L
+
-
Power Connection
DO NOT attempt to connect both
AC and DC at the same time
C
NO
NC
NO
NC
C
Solid State Relays
Rating:
50 mA 30V
Mechanical Relays
Rating:
5A 250 VAC
5A 30 VDC
~
+
-
+
-
~
CAUTION
OUT
2 OUT
1
POWER
COMM POR
T
/
OUT
4 OUT
3
RELA
Y
2 RELA
Y
1
RELA
Y
4 RELA
Y
3
SENSOR INPUTS
C
NO
NC
NO
NC
C
C
NO
NC
NO
NC
C
N
L
+
-
AC ONLY
+
-
+
-
1
2
3
4
5
6
7
8
9
10
11
12
13
14
OUT
2 OUT
1
POWER
COMM POR
T
/
OUT
4 OUT
3
RELA
Y
2 RELA
Y
1
RELA
Y
4 RELA
Y
3
SENSOR INPUTS
C
NO
NC
NO
NC
C
C
NO
NC
NO
NC
C
N
L
+
-
DC ONLY
+
-
+
-
1
2
3
4
5
6
7
8
9
10
11
12
13
14
For additional operator safety, an adhesive power indication
label (AC ONLY or DC ONLY) is packaged with each Power
Module and should be applied to the 8900 rear panel as
illustrated.
IMPORTANT SAFETY INFORMATION
Electrical
Power Requirements (AC or DC Power Modules)
Universal AC:
100 to 240 VAC ±10%, regulated 50–60 Hz, 24
VA
max.
DC:
12 to 24 VDC ±10%, regulated recommended,
7
watts
max.
Output Power to Sensors:
5VDC @ 40 mA (to 90 mA under special
conditions; see digital (S
3
L) wiring info)
Terminal type:
Screw clamp, removable via plug-in modules
Содержание 8900
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