HP 75000 B Series User manual

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HP 75000 SERIES B and C
Eight-Channel
Fixed Filter and Amplifier
Signal Conditioning Plug-on
HP E1509
User’s Manual
The HP E1503 manual also applies to HP E1413Bs as HP E1413 Option 19.
Enclosed is the User’s Manual for the HP E1509 Signal Conditioning Plug-on. Insert
this manual in your HP E1413/E1313 manual behind the “Signal Conditioning
Plug-ons” divider.
Manual Part Number: E1509-90001 Printed: JANUARY 1996 Edition 1
Printed in U.S.A. E 019
6
*E1509-90001*
E1509-90001
Copyright © Hewlett-Packard Company, 1993, 1994, 1996

HP E1509
Eight-Channel Fixed Filter and Amplifier
Signal Conditioning Plug-on
Introduction
The HP E1509 is a Signal Conditioning Plug-on that provides eight fixed
low-pass filters with a 3dB cutoff frequency of 7Hz and eight amplifiers
with gain of 64. Also provided is input over-voltage protection and open
transducer detection on each channel.
About this Manual
This manual shows you how to control the Signal Conditioning Plug-on
(SCP) using SCPI commands as well as Register-Based commands, and
explains the capabilities of this SCP. Finally, it covers specifications for this
SCP. The contents of this manual are:
•Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
•Identifying the Plug-on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
•Connecting To The Terminal Module. . . . . . . . . . . . . . . . . . 4
•Programming With SCPI Commands . . . . . . . . . . . . . . . . . . 6
•Programming With Register Commands . . . . . . . . . . . . . . . 8
•Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Installation
Installation for this Plug-on is common to several others and is covered in
Chapters 1 and 2 of your HP E1413/E1313 manual.
Identifying the Plug-on
You’ll find the HP part number on the connector side of the SCP to the left
of the serial number bar code. For the HP E1509, the part number is :
E1413-63519
Introduction HP E1509 Fixed Filter+Amplifier SCP 3

Connecting To The Terminal Module
This section shows how to make connections to the Terminal Module.
The SCP connections for the Terminal Modules are shown on the stick-on
labels that came with the SCP. Use the appropriate label for the type of
Terminal Module you have. The connections and appropriate stickers are as
follows:
•For HP E1413C and above Terminal Modules, use stickers for
HP E1509 SCPs. The connections are shown in Figure 1.
•For HP E1313 Terminal Moduless, use stickers for HP E1509 SCPs.
The connections are shown in Figures 2 and 3.
•For HP E1413B and below Terminal Modules, use stickers for
HP E1413 Option 19 SCPs. The connections are shown in Figure 4.
Figure 1 HP E1509 C-Size Terminal Module Connections
4 HP E1509 Fixed Filter+Amplifier SCP Connecting To The Terminal Module

Figure 2 HP E1509 B-size Terminal Module Connections (Ch 00-31)
Figure 3 HP E1509 B-size Terminal Module Connections (Ch 32-63)
Figure 4 HP E1413 Option 19 Terminal Module Connections
Connecting To The Terminal Module HP E1509 Fixed Filter+Amplifier SCP 5

Programming With SCPI Commands
The SCPI commands shown here are covered in Chapters 3 and 5 of your
HP E1413/E1313 manual. This section will relate those commands to the
parameter values which are specific to this Plug-on.
Checking the ID
of the SCP To verify the SCP type(s) installed on the HP E1413/E1313 use the
SYSTem:CTYPe? (@<channel>) command.
•The channel parameter specifies a single channel in the channel
range covered by the SCP of interest. The first channel number for
each of the eight SCP positions are; 0,8,16,24,32,40,48, and 56.
The value returned for the SCP in an HP E1413B is:
HEWLETT-PACKARD,E1413 Opt 19 8-Channel Fixed Gain-Filter SCP,0,0
The value returned for the SCP in an HP E1313A/E1413C is:
HEWLETT-PACKARD,E1509 8-Channel Fixed Gain-Filter SCP,0,0
To determine the type of SCP installed on channels 0 through 7 send
SYST:CTYP? (@100) query SCP type @ ch 0
enter statement here
Querying the Filter
Cutoff Frequency While the the HP E1509 does not provide programmable cutoff frequency
the filter frequency can be queried. The response to this query will always
be 7. To query any channel for its cutoff frequency use the
INPut:FILTer[:LPASs]:FREQuency? (@<channel>) command. The
INP:FILT:FREQ? command returns the numeric cutoff value currently set
for the channel specified.
•The channel parameter must specify a single channel.
To query the cutoff frequency of channel 6 send
INP:FILT:FREQ? (@106) query channel 6
enter statement here
Querying the
Filter State While the HP E1509 does not allow controlling whether the filters are
enabled or disabled, this state can be queried. The response to this query
will always be 1. To query any channel to determine if it is enabled or
disabled use the INPut:FILTer[:LPASs][:STATe]? (@<channel>)
command. The INP:FILT? command returns a 0 if the channel is OFF or a 1
if the channel is ON.
6 HP E1509 Fixed Filter+Amplifier SCP Programming With SCPI Commands

•The channel parameter must specify a single channel.
To query the filter state of channel 2 send
INP:FILT? (@102) query channel 2
enter statement here
Querying the
Channel Gain While the HP E1509’s amplifiers have fixed gain, the channel gain can be
queried. The response to this query will always be 64. To query any channel
to determine its gain setting use the INPut:GAIN? (@<channel>) command.
The INP:GAIN? command returns the current gain value for the specified
channel.
•The channel parameter must specify a single channel.
To query the gain setting of channel 8 send
INP:GAIN? (@108) query channel 8
enter statement here
Detecting Open
Transducers This SCP provides a method to detect open transducers. When Open
Transducer Detect (OTD) is enabled, the SCP injects a small current into
the HIGH and LOW input of each channel. The polarity of the current pulls
the HIGH inputs toward +17 volts and the LOW inputs towards -17 volts. If
a transducer is open, measuring that channel will return an over-voltage
condition. OTD is available on a per SCP basic. all eight channels of an
SCP are enabled or disabled together. See Figure 5 for a simplified
schematic diagram of the OTD circuit.
Signal Conditioning Plug-on Multiplexer
Signal Input
High
Low
100M
-17V
3K
Gnd.
3K
100M
+17V
High
Low
Figure 5 Open Transducer Detect Circuit
Programming With SCPI Commands HP E1509 Fixed Filter+Amplifier SCP 7

NOTES 1) When OTD is enabled, the inputs have up to 0.2µA injected into them. If
this current will adversely affect your measurement, but you still want to
check for open transducers, you can enable OTD, make a single scan, check
the CVT for bad measurements, then disable OTD and make your regular
measurement scans. The specifications apply only when OTD is off.
2) Allow 5 minutes before checking for open transducers to allow filter
capacitors to charge.
To enable or disable Open Transducer Detection, use the
DIAGnostic:OTDetect <enable>, (@<ch_list>) command.
•The enable parameter can specify ON or OFF
•An SCP is addressed when the ch_list parameter specifies a channel
number contained on the SCP. The first channel on each SCP is:
0, 8, 16, 24, 32, 40, 48, and 56
To enable Open Transducer Detection on all channels on SCPs 1 and 3:
DIAG:OTD ON, (@100,116) 0 is on SCP 1 and 16 is on SCP3
To disable Open Transducer Detection on all channels on SCPs 1 and 3:
DIAG:OTD OFF, (@100,116)
Register Based Programming
The register-based commands shown here are covered in Appendix D of the
HP E1413/E1313 manual. You should read that section first to become
familiar with accessing registers and executing Register-Based Commands.
This section will relate those commands to the parameter values which are
specific to this Plug-on.
When Register Programming an SCP most communication is through the
Signal Conditioning Bus. For that you will use the Register Commands:
SCBWRITE <regaddr> <regvalue>
and
SCBREAD? <regaddr>
8 HP E1509 Fixed Filter+Amplifier SCP Register Based Programming

HP E1509 Register Map
Read (returned value) Write( < regvalue >) SCP Register < regaddr > Value
SCP ID (902016) Whole SCP Reg 0 00ppp0000002
ppp=Plug-on
ccc=SCP channel
In addition you will access bits in the Card Control register to control Open
Transducer Detection.
Checking ID of SCP To query an SCP for its ID value, write the following value to Parameter
Register 1:
(SCP number)×4016
Then write the opcode for SCBREAD? (080016) to the Command Register.
The ID value will be returned to the Query Response Register.
Detecting Open
Transducers Open Transducer Detection (OTD) is controlled by bits in the Card Control
Register. For more information on OTD see Figure 1.
Card Control Register (Base + 1216)
15 14 14-13 12 11 10-8 7-0
PSI Pwr Reset FIFO Mode unused FIFO Clear VPPEN A24 Window Open Transducer Detect
Writing a one (1) to a bit enables open transducer detect on that signal
conditioning module. Writing a zero (0) to a bit disables open transducer
detect.
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
SCP 7 SCP 6 SCP 5 SCP 4 SCP 3 SCP 2 SCP 1 SCP 0
Register Based Programming HP E1509 Fixed Filter+Amplifier SCP 9

Specifications
These specifications for the HP E1509 reflect the combined performance of
the HP E1413/E1313 and the HP E1509 Signal Conditioning Plug-on.
These specifications are not to be added to those presented in the
HP E1413/E1313 User’s Manual.
General Specifications
Measurement ranges
DC Volts ±3.9mV to ±.25V FS
Temperature Thermocouples - -200 to +1700 °C
Thermistors - (Opt 15 required) -80 to +160 °C
RTD’s - (Opt 15 required) -200 to +850 °C
Resistance (Opt 15 required) 128 ohms to 131 Kohms FS
Strain 25,000 µe or limit of linear range of strain gage
Maximum input voltage
(Normal mode plus common mode) Operating: < ±16 V peak Damage level: > ±42 V peak
Maximum common mode
voltage Operating: < ±16 V peak Damage level: > ±42 V peak
Normal mode rejection @ 7Hz -3dB, @ 60Hz >-25dB
Common mode rejection 0-60Hz -100dB
Input impedance 100 Mohm ±10% (each differential input to ground)
Maximum tare cal offset (Maximum tare offset depends on A/D range and SCP gain)
A/D range
±V F.Scale 16 4 1 0.25 0.0625
Max Offset .04970 .01220 .00297 .00055 n/a
10 HP E1509 Fixed Filter+Amplifier SCP Specifications

Measurement accuracy
DC Volts (90 days) 23°C ±1°C (with *CAL? done after 1 hr warm up and CAL:ZERO?
within 5 min.). If autoranging is ON, add ±.02% FS to accuracy specifications.
For E1313, multiply Noise Spec. by 1.4.
Gain 64 Range
±V FS Linearity % of reading Offset Error µV (10Hz) Noise µV 3 sigma Noise µV* 3 sigma
.0039
.0156
.0625
.25
0.01
0.01
0.01
0.01
2.3
2.4
3.0
8.0
1.7
2.5
7.0
28
1.4
2.2
5.7
23
* [SENSe:]FILTer[:LPASs][:STATe] ON (max scan rate - 100 rdgs/sec/channel)
Temperature Coefficients: Gain - 15ppm/°C. Offset - (0 - 30°C) .16µV/°C, (30 - 40°C) .18µV/°C,
(40 - 55°C) .39µV
Measurement accuracy
Temperature
(simplified specifications, see
temperature accuracy graphs in HP
E1413/E1313 manual for details)
Thermocouples
(90 days) 23°C ±1°C (with *CAL? done after 1 hr warm up and CAL:ZERO? within 5
min.). If autoranging is ON, add ±.02% FS to accuracy specifications.
The temperature accuracy specifications include instrument and firmware
linearization errors. The linearization algorithmused is based on the IPTS-68(78)
standard transducer curves. Add your transducer accuracy to determine total
measurement error.
Type E A/D Filter -200 to 0 °C 0 to 200 °C 200 to 400 °C 400 to 800 °C
OFF
ON* 1.25°C 1.20°C0.10°C 0.095°C0.12°C 0.10°C0.125°C 0.11°C
Type EEXtended A/D Filter -200 to 0 °C 0 to 200 °C 200 to 800 °C 800 to 1000 °C
OFF
ON* 13.4°C 13.3°C0.30°C 0.25°C0.20°C 0.15°C0.35°C 0.30°C
Type J A/D Filter -200 to 0 °C 0 to 280 °C 280 to 600 °C 600 to 775 °C
OFF
ON* 1.50°C 1.47°C0.10°C 0.11°C0.15°C 0.15°C0.17°C 0.15°C
Type K A/D Filter -200 to 0 °C 0 to 375 °C 375 to 800 °C 800 to 1400°C
OFF
ON* 2.25°C 2.70°C0.15°C 0.15°C0.20°C 0.17°C0.25°C 0.25°C
Type R A/D Filter 0 to 100 °C 100 to 200 °C 200 to 600 °C 600 to 1000 °C
OFF
ON* 1.40°C 1.40°C0.75°C 0.70°C0.45°C 0.40°C0.30°C 0.30°C
* [SENSe:]FILTer[:LPASs][:STATe] ON (max scan rate - 100 rdgs/sec/channel)
Specifications HP E1509 Fixed Filter+Amplifier SCP 11

Measurement accuracy
Temperature (cont.)
Thermocouples (cont.)
(simplified specifications, see temperature accuracy graphs in HP E1413/E1313
manual for details)
Type S A/D Filter 0 to 100 °C 100 to 200 °C 200 to 800 °C 800 to 1750 °C
OFF
ON* 2.85°C 2.85°C1.35°C 1.80°C0.70°C 0.65°C0.65°C 0.55°C
Type T A/D Filter -200 to -100°C -100 to 0 °C 0 to 200 °C 200 to 400 °C
OFF
ON* 1.35°C 1.35°C0.25°C 0.22°C0.10°C 0.10°C0.15°C 0.13°C
5KΩReference Thermistor
A/D Filter 45 to 65 °C 65 to 85 °C
OFF
ON* 0.0061°C 0.0055°C0.011°C 0.010°C
100ΩReference RTD
A/D Filter -125 to 70°C
OFF
ON* 0.080°C 0.080°C
100ΩRTD
A/D Filter -200 to 75 °C 75 to 300 °C 300 to 600 °C 600 to 970 °C
OFF
ON* 0.08°C 0.07°C0.21°C 0.18°C0.27°C 0.25°C0.37°C 0.35°C
2252ΩThermistor
A/D Filter 63 to 70 °C 70 to 83 °C 83 to 100 °C
OFF
ON* 0.008°C 0.007°C0.009°C 0.008°C0.014°C 0.012°C
5KΩThermistor
A/D Filter 15 to 30 °C 30 to 70 °C 70 to 85 °C
OFF
ON* 0.011°C 0.010°C0.013°C 0.013°C0.017°C 0.017°C
10KΩThermistor
A/D Filter 30 to 60 °C 60 to 90 °C 90 to 115 °C
OFF
ON* 0.015°C 0.014°C0.016°C 0.015°C0.022°C 0.020°C
12 HP E1509 Fixed Filter+Amplifier SCP Specifications

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