Ambient Temperature
The target plate of the BB701 can achieve any
temperature within the specified temperature range
of -18 to 149°C (0 to 300°F) when being operated
in normal ambient temperature environments. The
maximum specified target plate temperature of 149°C
(300°F) can be achieved over the entire specified
ambient temperature range. However, lower target
plate temperatures are more difficult to attain at
increased ambient temperatures. As long as the
ambient temperature does not exceed 29.4°C (85°F),
the target plate will achieve its lower limit temperature
of -18°C (0°F). The minimum target plate temperature
the unit can achieve is proportionally worse with
increased ambient temperature. An increase of 1°C is
accompanied by an increase in minimum target plate
temperature of 0.3°C (An increase of 1°F is accompanied
by an increase in minimum target plate temperature of
0.5°F).
The Effect of Increased Ambient Temperature
On Operating Temperatures
Front Panel
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Using This Quick Start Manual
Use this Quick Start Manual with your BB701
Blackbody Calibrator for easy installation and
basic operation. For detailed information, refer to
the User’s Guide (Manual # M3264).
PRECAUTIONS:
• Follow all safety precautions and operating
instructions outlined in this quick start and
accompanying User’s Guide.
• Never leave your calibrator unattended when in
use.
• Keep out of reach of children.
• Never touch the target plate when hot.
• Never place any object within 3 inches of the
cavity opening when hot.
• Do not operate in flammable or explosive
environments.
• Never operate with a power cord other than the
one provided with your unit.
• Remove and or disconnect main power cord
before attempting any maintenance or fuse
replacement.
• Do not connect and or operate this unit to a non-
grounded, non-polarized outlet or power source.
• Do not connect the serial port or reference probe
port to equipment with exposed, hazardous, live
voltages.
General Information
The Model BB701 is a portable, rugged, bench-
top, hot/cold blackbody calibration source with
a built-in precision PID digital controller. The
calibrator is used to test and calibrate infrared
pyrometers. The large 2.5 inch diameter target
plate has an emissivity of 0.95 and can be set to
any temperature between –18 to 149°C (0 to 300°F).
Mounting
Mount the unit on a bench, table top or shelf in a
horizontal position and operate at least ten inches
from any air obstructions to the fan, front panel,
rear panel, and top of the unit. Operate the unit in
an ambient environment between the specified 4.4
and 43°C (40 to 110°F).
Process Temperature:
This field displays the current temperature of the target
plate.
Setpoint Temperature:
This field displays the desired target plate temperature.
Once the target plate reaches this desired temperature,
both displays will read the same value.
Hot Cycle Indicator:
When this Amber L.E.D. is illuminated, the unit is
heating up the target plate.
Cold Cycle Indicator:
When this Blue L.E.D. is illuminated, the unit is cooling
down the target plate.
21.1
+11.8
+7.1
+2.38
0
-2.34
-7.06
-11.2
-13.8
-16.5
-17.8
-19.1
-21.7
26.7
29.4
32.2
AMBIENT TEMPERATURE (
°
C)
MINIMUM A
TT
AINABLE
TARGET PLA
TE
TEMPERA
TURE (
°
F)
MINIMUM A
TT
AINABLE
TARGET PLA
TE
TEMPERA
TURE (
°
C)
AMBIENT TEMPERATURE (
°
F)
37.8
43.3
70
80
85
90
100
110
TARGET PLATE TEMPERATURE OPERATING REGION
C
AU
TI
ON
: T
AR
GET
SURFACE M
AY B
E H
O
T
C
A
U
TI
O
N:
TA
R GE
T S URFACE
M
AY
B
E
H
O
T
BB701
TM
BLACK POINT
Blackbody
Calibrator
00
°
1
°
C
0
°
1
°
C
T
rat r
a
SET OINT TEM ERATURE
ROCESS TEM ERATURE
MO E EY
TARGET
ATE
O ER EY
RAISE EY
ARAMETER
ACCESS EY
O ER
S ITCH
HOT CYC E IN ICATOR
CO
CYC E IN ICATOR
Parameter/Access Key:
Press to scroll through menu parameters.
Raise Key: Press to increase the selected parameter or
scroll upward in the list of possible settings.
Lower Key: Press to decrease the selected parameter
or scroll downward in the list of possible settings.
Mode Key:
Press to save settings and exit a menu level.
Back Panel
AIR PURGE NOZZLE
AC POWER INPUT
SERIAL PORT
FAN
FOOTING
REFERENCE PROBE PORT
VENT
AC Power Input:
The customer connects the power cord to the AC
Power Input. As a safety precaution, the power
cord cannot be connected if the fuse compartment
is open.
Reference Probe Port:
The reference probe port enables the user to
monitor the target plate temperature with an
external instrument. The wires are connected to a
platinum 3-wire RTD.
Air Purge Nozzle:
A dry gas source can be connected to this nozzle in
order to minimize condensation on the target plate
when operating at low temperatures.
Serial Port:
The female DB-9 port allows the customer to make
a 3-wire RS232 interface with the BB701.
Calibrating An IR Pyrometer
The 2.5" target plate is a near ideal blackbody
source. The emissivity of the plate is 0.95. When
calibrating an IR pyrometer, hold the pyrometer
perpendicular to the target plate for optimal
performance. The proper distance between the IR
pyrometer and the target plate depends on the
field of view of the pyrometer. If the pyrometer is
too far away it will scan unwanted surfaces outside
of the perimeter of the target plate. Holding the
pyrometer too close could introduce undesirable
heat to the IR detector of the pyrometer.
Changing the Temperature Setpoint
The BB701’s upper display indicates the blackbody
target plate temperature known as (PV) Process
Variable, while the lower display indicates the
programmed setpoint known as (SV) Setpoint
Variable. Making changes to the setpoint, units can
be made via the
and
keys. Holding a key
in, continuously, will cause the setpoint
temperature to advance more quickly to a desired
value. Three scanning speeds are provided: slow,
medium and fast. The minimum and maximum
setpoints are locked at 0 and 300°F, respectively.
While these max. and min. settings are changeable,
it is strongly advised not to adjust these
parameters.
